Lightroom Classic: Export very slow

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  • Problem
  • Updated 2 months ago
  • (Edited)
the export in lightroom since version 4.0 is very slow. 
i just wanted to save time and bought a new high end pc. no effect - the export is as slow as on my 2 years old medium end pc. i tried every performance tip - nothing worked. 

i could see that 9 files are exported at the same time. the files are created ... then nothing happens for a long of time (only cpu is on 100%).. after a while the files appear.

this happens on 4 windows pcs - no matter if intel or amd. 
it ́s very frustrating if you buy a new to save time at work and nothing happends.

sadly if this does not change i will have to switch to capture one... 
without hardware acceleration it was 50% faster than with lr
with hardware acceleration it was about 95% faster than with lr (45 seconds vs. 9 minutes)

i gonna invite any developer to take a look at my mashine via teamviewer and deliver beer if this is finally solved
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Thomas Steinlechner

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  • sad, frustrated, forsaken

Posted 9 months ago

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Victoria Bampton - Lightroom Queen, Champion

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Where are the images stored? And where are you exporting to?
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Thomas Steinlechner

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the images are stored on an nvme ssd / export is in subfolder in same directory - "/FINAL" ... 

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Edmund Gall

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Hi Thomas! If I understand your configuration correctly, that means your original images and your exported images are being stored on the same drive. If so, then can you try attaching a USB drive and exporting to that? If the export time drops significantly, then there may be something affecting the read/write performance of your SSD.

Some further questions that might help others to diagnose:
  1. Is your LR catalog also stored on the images' SSD? You sysinfo suggests it is, but don't want to assume.
  2. Is Windows installed on the images' SSD (your sysinfo suggests it is, i.e. on the C: drive)? If yes, how much free space do you have on the SSD?
  3. I know you said you tried every performance tip, but still need to confirm whether you tried all on this (especially the 'pause syncing' (if you sync collections with CreativeCloud, and any tips specific to Windows): https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html
  4. What size do you have specified for your Camera Raw Cache in LR Preferences? Forgive me if it's already specified in your sysinfo export below (e.g. Virtueller Speicher in Camera Raw or Cache-Speichergröße): I don't have a Windows system to check and am not sure which of those sysinfo values refer to the Camera Raw Cache.
  5. Have you explored tips to optimise SSD performance in Windows 10, e.g.: https://www.maketecheasier.com/12-things-you-must-do-when-running-a-solid-state-drive-in-windows-7/

From your specs below, I'm also very surprised you don't see a very significant performance boost compared to LR 4. Hope you get a resolution soon.

Danke schön!
Ed





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Thomas Steinlechner

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hi, no effect if i export on a different location . (absolutely no effect).
i benchmarked my ssd ́s and it ́s writing with 2,3 GB/s ... so the Harddrive for shure is not the problem - CR Cache is set to 50GB 

i ́m pretty shure some lightroom internal process is blocking the export 
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Edmund Gall

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Sounds like you need Adobe Support to connect to your computer. If you're a CC subscriber, check their support website for the link to initiate a chat or call...
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Thomas Steinlechner

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i tired to initiate this more than once ... they say - if it is installed and runs everything is fine ... the only will help if a error message / number is shown or lr crashes ... (this is a topic for me now since 3 years) . different pcs ... 
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Thomas Steinlechner

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any news on this ? 
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MarcusT

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Strange...

First try booting in safe mode and seeing if that makes a difference - see https://www.ccleaner.com/news/blog/2019/01/17/how-to-boot-windows-in-safe-mode

If so then it's then a question of working out which startup app is interfering by disabling them all and then enabling them one by one - see https://www.techadvisor.co.uk/how-to/windows/remove-windows-10-startup-programs-3615075/
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Thomas Steinlechner

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thanks for the input. 
this is a thing i really did not try until now. 
but - no effect - the performance is equal. maybe other tipps ? or any update in the near future . maybe it has to do with the AMD TR 2650X  Processor - This is the only component with has a load of 100% - GPU ~ 5% & RAM ~ 25% 
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Thomas Steinlechner

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here is my system info (while export) ... maybe it helps ... i have no more ideas ... even that capture one dose the same job in about 30 sek.

Lightroom Classic-Version: 8.3.1 [ 201905241238-dcd7e2de ]
Lizenz: Creative Cloud
Spracheinstellung: de
Betriebssystem: Windows 10 - Enterprise Edition
Version: 10.0.18362
Anwendungsarchitektur: x64
Systemarchitektur: x64
Anzahl logischer Prozessoren: 32
Prozessorgeschwindigkeit: 3,4 GHz
Integrierter Speicher: 32640,2 MB
Für Lightroom verfügbarer phys. Speicher: 32640,2 MB
Von Lightroom verwendeter phys. Speicher: 9981,2 MB (30,5%)
Von Lightroom verwendeter virtueller Speicher: 12355,8 MB
Anzahl GDI-Objekte: 715
Anzahl BENUTZER-Objekte: 2332
Anzahl Prozess-Handles: 2407
Cache-Speichergröße: 437,8MB
Interne Camera Raw-Version: 11.3 [ 197 ]
Maximale Anzahl Threads, die Camera Raw verwendet: 5
Camera Raw SIMD-Optimierung: SSE2,AVX,AVX2
Virtueller Speicher in Camera Raw: 5823MB / 16320MB (35%)
Physischer Speicher in Camera Raw: 8636MB / 32640MB (26%)
DPI-Einstellung des Systems: 96 DPI
Desktop-Komposition aktiviert: Ja
Monitore/Anzeigegeräte: 1) 2560x1440, 2) 1920x1200
Eingabetypen: Multitouch: Nein, integrierte Toucheingabe: Nein, integrierter Stift: Nein, externe Toucheingabe: Nein, externer Stift: Nein, Tastatur: Nein

Informationen zum Grafikprozessor: 
DirectX: NVIDIA GeForce RTX 2070 (26.21.14.3086)



Anwendungsordner: C:\Program Files\Adobe\Adobe Lightroom Classic
Bibliothekspfad: C:\Users\Thomas Steinlechner\Pictures\Lightroom\Lightroom Catalog.lrcat
Einstellungen-Ordner: C:\Users\Thomas Steinlechner\AppData\Roaming\Adobe\Lightroom

Installierte Zusatzmodule: 
1) AdobeStock
2) Facebook
3) Flickr
4) Nikon Tether-Zusatzmodul

Config.lua-Flags: None

Adapter Nr. 1: Anbieter : 10de
Gerät : 1f07
Subsystem : 86701043
Version : a1
Grafikspeicher : 8031
Adapter Nr. 2: Anbieter : 1414
Gerät : 8c
Subsystem : 0
Version : 0
Grafikspeicher : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: SMS24A850 (NVIDIA High Definition Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: 12.1x4
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 0
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 32768
GL_MAX_TEXTURE_UNITS: 4
GL_MAX_VIEWPORT_DIMS: 32768,32768
GL_RED_BITS: 8
GL_RENDERER: GeForce RTX 2070/PCIe/SSE2
GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA
GL_STENCIL_BITS: 8
GL_VENDOR: NVIDIA Corporation
GL_VERSION: 4.6.0 NVIDIA 430.86
GPUDeviceEnabled: false
OGLEnabled: true
GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_AMD_vertex_shader_viewport_index GL_AMD_vertex_shader_layer GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_2_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_fragment_shader_interlock GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader_int64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_parallel_shader_compile GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_polygon_offset_clamp GL_ARB_post_depth_coverage GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_query_buffer_object GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_locations GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counter_ops GL_ARB_shader_atomic_counters GL_ARB_shader_ballot GL_ARB_shader_bit_encoding GL_ARB_shader_clock GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shader_viewport_layer_array GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_sparse_buffer GL_ARB_sparse_texture GL_ARB_sparse_texture2 GL_ARB_sparse_texture_clamp GL_ARB_spirv_extensions GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_filter_anisotropic GL_ARB_texture_filter_minmax GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle 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GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_post_depth_coverage GL_EXT_provoking_vertex GL_EXT_raster_multisample GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_formatted GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_sparse_texture2 GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_filter_minmax GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_window_rectangles GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_EXT_memory_object GL_EXT_memory_object_win32 GL_EXT_win32_keyed_mutex GL_KHR_parallel_shader_compile GL_KHR_no_error GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_EXT_semaphore GL_EXT_semaphore_win32 GL_KTX_buffer_region GL_NV_alpha_to_coverage_dither_control GL_NV_bindless_multi_draw_indirect 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GL_NV_fragment_shader_interlock GL_NV_framebuffer_mixed_samples GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_geometry_shader_passthrough GL_NV_gpu_program4 GL_NV_internalformat_sample_query GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_memory_attachment GL_NV_mesh_shader GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_path_rendering_shared_edge GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_query_resource GL_NV_query_resource_tag GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_representative_fragment_test GL_NV_sample_locations GL_NV_sample_mask_override_coverage GL_NV_scissor_exclusive GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_atomic_float64 GL_NV_shader_atomic_fp16_vector GL_NV_shader_atomic_int64 GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_shader_texture_footprint GL_NV_shading_rate_image GL_NV_stereo_view_rendering GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_rectangle_compressed GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NV_viewport_array2 GL_NV_viewport_swizzle GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_NVX_multigpu_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_OVR_multiview GL_OVR_multiview2 GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum GL_WIN_swap_hint WGL_EXT_swap_control
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Jim Wilde, Champion

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I'm very surprised that you think there has been no improvment in export speeds since LR4. I routinely run a series of performance tests at each major version release, and when I compare my timings from LR4 with my current LR Classic 8.3.1 I see that the current version processes the exports almost twice as fast. The major change came with LR6 when the export function was changed to process exports in parallel, rather that sequentially, and that one change made a signicant improvement.

Regarding your Capture One comparison, I have no personal experience of using C1 for exports. All I would ask is that you are comparing like for like, i.e. you are exporting the same set of images from the same location, with identical export settings, and to the same destination, and of course if any edits are applied they have to be applied identically in both of the apps. Ideally you would also run the tests in the same system environment (e.g. after reboot with no other apps active). All of these things can influence the export speed, so to get a meaningful comparison everything needs to be as identical as possible.
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Thomas Steinlechner

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any news ? 
it ́s not the ssd / display drivers or any background tasks. in benchmarks my machine performs well. 
also equal performance in windows safe mode. 

maybe it ́s time somebody from adobe connects to my pc ??? 
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Rikk Flohr, Official Rep

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Thomas, 

I just performed my torture test:
  • Win 10 (1903) files on multiple 6TB 7200 rpm disks 
  • 608 PSD files at ~ 160 MB on disk each
  • Full Size JPEG export to SSD  1TB (360 GB Free Space)
  • Export and Reimport back into Catalog during Export
Elapsed Time:~  8 Minutes and 16 seconds - seems reasonable

I suspect you have a problem with your installation.  First stop (since you didn't mention doing it before) Reset your preference file 

A Preference File will survive a Lightroom uninstall/reinstall. Sometimes weird behavior is corrected/cured by resetting the preferences. 

Reset Procedure:

1. Close Lightroom.
2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom. 
3. Overwrite the Preferences when prompted by the dialog.
4. Close Lightroom.
5. Restart Lightroom.

Does the slow export behavior continue after resetting the preferences?

If so, great - if not - we want you to try a clean install in case there was an issue with the previous install. 
  • Close Lightroom
  • Restart the computer
  • Use the Adobe Creative Cloud App to uninstall Lightroom Classic
  • Restart the computer
  • Install Lightroom Classic via the Creative Cloud App without launching any other programs.
  • Restart the computer
  • Launch Lightroom
  • Wait 5 minutes
Does your Export speed improve?
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Thomas Steinlechner

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no - absolutely not - i tried both tipps - and the only thing that happend was me loosing another hour of time ... 
i ́m totally tired always triying thing that might could work but i does not even get bether by a few percent
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Rikk Flohr, Official Rep

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Next step will be to examine your file storage/output.

  1. The Originals are located on which drive:
  2. Drive Type:
  3. Free Space: 
  4. Export options selected: (Paste a picture of your export settings:
  5. The export destination:
  6. Drive Type: 
  7. Free Space:
  8. Virus Software in use?
  9. Brand:
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Thomas Steinlechner

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Everything of this points are okay already written above
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whitethedark

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Hey ... I just arrived here because I am also feeling the same; 

not only LR takes a lot to export, it also makes my pc going numb and cant do anything properly until it finish with the export. 

I am using an HP Omen PC, 1080 gtx, ... I have the catalog in one HDD, exporting to an SSD ; because when I had the catalog in an ssd exporting to ssd it took forever. So I am trying this way now, and same result  (and Windows in its own nvme ssd)

But the worst is that it makes the whole computer go slower and cranky. 

So ... I am just writing this to give you a point of "yes, I understand you" ; 

I use LR for some jobs, use Capture One for others (depends on my partners). And for myself I use RawTherapee. 

RawTherapee works the best, (and even much better color scheme) and is open source. 


Anyway .. hope LR is able to fix that export problem
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Jarmo Nikula

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I am having the same problem. Even exporting a single image may take few minutes. That's very frustrating. Sometimes it works fast, but usually not.

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Rikk Flohr, Official Rep

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Did you follow the steps mentioned above?
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Greg White

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I too am unable to use LR Classic 9.1 because of very slow exports.  I have tested 10 DNG images exported as jpegs to the same folder and the speed is the same: 2 minutes and 10 seconds, whether I use no GPU, GPU set to AUTO, or GPU set to Custom-Use GPU for Image Processing.  Yes I restarted Lightroom each time after changing the settings.    Here's the interesting part:  I did the exact same test with Lightroom CC 2015.13. The catalog sizes are the the same, I used the same images, saved to same locations, and the same export parameters.   LR CC 2015.13 exports these same 10 images in 12 SECONDS.    Yes, over 10x faster than LR Classic!  WHY IS THAT?   If GPU is enabled in LR 2015.13, it finishes in 11 seconds.   So there is clearly something wrong with LR Classic.  Not my system, not the HD, not the catalog, it's LR Classic.  It's unusably slow.   I'm using iMac 2019, OS 10.14.6, 64 GB RAM, Radeon Pro Vega 8 GB GPU, Catalog/previews are on a 1 TB SSD with 500 GB available, images are on a Thunderbolt-connected RAID with 4 TB available.  Since I am forced to use an old version of Lightroom because it's literally 10 x faster, I don't understand why I'm paying a monthly subscription.  
(Edited)
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Greg White

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I just followed Rikk Flohr's instructions to the letter.  First reseting preferences... saved me 5 seconds (now 2:05 secs to export 10 images).    I then tried uninstalling and reinstalling Lightroom Classic, exactly as he instructed, resetting computer between steps.  This made absolutly no difference in export time, but did waste 45 minutes of my life that I can't get back.  :)
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Greg White

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My one suggestion to everyone who is having this problem with Lightroom Classic export speed is to try Lightroom CC 2015 with same images and see if it's not 10x faster.
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Rikk Flohr, Official Rep

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Greg,

I've run an export test twice using 10 DNG files exporting to JPEG and the average elapsed time is 17 seconds across the three test runs. 

Macbook Pro 10.14.6
Classic 9.1
Files on local drive
Export to local drive

It sounds like you may have a system specific problem.  I would be happy to test again if you want to share your complete export settings so that I can duplicate as closely as possible.
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Greg White

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Thanks Rikk.   Sure, it's pretty straightforward:  
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Rikk Flohr, Official Rep

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The only setting I had different was I had Add to Catalog unchecked and I was exporting to a fresh folder.  I checked it and reran export twice . 18 Seconds & 16 seconds.

Where is the original folder located? 
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Greg White

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Today I tried moving my LR Classic catalog and previews to my Thunderbolt-connect raid instead of my internal 1 TB SSD to see if there was any performance difference.  Instead of taking 2:02 mins to convert 10 DNG to JPEGs, it took 2:04 mins.  So only a +1.5% difference in speed.   My LR 2015 still only takes 11 seconds for same images.   Below is my LR classic system information.  
Lightroom Classic version: 9.1 [ 201911291132-64cf80b4 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 10
Version: 10.14.6 [18G2022]
Application architecture: x64
Logical processor count: 16
Processor speed: 3.6 GHz
Built-in memory: 65,536.0 MB
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 3,871.9 MB (5.9%)
Virtual memory used by Lightroom: 12,331.3 MB
Memory cache size: 21.9MB
Internal Camera Raw version: 12.1 [ 351 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 44MB / 32767MB (0%)
Camera Raw real memory: 45MB / 65536MB (0%)
Displays: 1) 5120x2880, 2) 1920x1200

Graphics Processor Info: 
Metal: AMD Radeon Pro Vega 48



Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/Eisenstein/Lightroom Classic/Lightroom Catalog-classic.lrcat
Settings Folder: /Users/gregwhite/Library/Application Support/Adobe/Lightroom

Installed Plugins: 
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Aurora HDR 2019
4) Blurb BookSmart
5) DxO PhotoLab
6) DxO PhotoLab 2
7) DxO PhotoLab 2 Importer
8) DxO PhotoLab Importer
9) Export to Photomatix Pro
10) Facebook
11) Flickr
12) FocalPoint
13) HDR Efex Pro
14) HDR Efex Pro 2
15) LR/Mogrify 2
16) LRT Export 5
17) Luminar 4
18) Nikon Tether Plugin
19) onOne Perfect Photo Suite
20) Perfect Effects
21) Perfect Portrait
22) Perfect Resize
23) PhotoFrame
24) PhotoTools 2.6
25) PhotoTune
26) SmugMug
27) Upload To Pictage

Config.lua flags: 
Features.disableGlobalTaskManager = true

AudioDeviceIOBlockSize: 512
AudioDeviceName: Built-in Output
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: 12.1x4
CoreImage: true
GL_ACCUM_ALPHA_BITS: 0
GL_ACCUM_BLUE_BITS: 0
GL_ACCUM_GREEN_BITS: 0
GL_ACCUM_RED_BITS: 0
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon Pro Vega 48 OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 2.1 ATI-2.11.21
OGLEnabled: true
GL_EXTENSIONS: GL_ARB_color_buffer_float GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_instanced_arrays GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_rectangle GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_APPLE_aux_depth_stencil GL_APPLE_client_storage GL_APPLE_element_array GL_APPLE_fence GL_APPLE_float_pixels GL_APPLE_flush_buffer_range GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_packed_pixels GL_APPLE_pixel_buffer GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_specular_vector GL_APPLE_texture_range GL_APPLE_transform_hint GL_APPLE_vertex_array_object GL_APPLE_vertex_array_range GL_APPLE_vertex_point_size GL_APPLE_vertex_program_evaluators GL_APPLE_ycbcr_422 GL_ATI_blend_equation_separate GL_ATI_blend_weighted_minmax GL_ATI_separate_stencil GL_ATI_texture_compression_3dc GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_IBM_rasterpos_clip GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_barrier GL_SGI_color_matrix GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod
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Greg White

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The Original folder is located on my 8 TB external Raid attached to iMac with Thunderbolt.   Raid has 4 TB of room left on it.  Same folder as used with my LR 2015.   I will move these same 10 images to my internal SDD to see if there's any difference.
(Edited)
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Greg White

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There is no difference in export speed whether the original images are in my Raid drive or my internal SSD.  
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Greg White

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Here's my LR 2015 information:
Lightroom version: CC 2015.13 [ 1141928 ]
License: Creative Cloud
Operating system: Mac OS 10
Version: 10.14 [6]
Application architecture: x64
Logical processor count: 16
Processor speed: 3.6 GHz
Built-in memory: 65,536.0 MB
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 1,314.1 MB (2.0%)
Virtual memory used by Lightroom: 7,586.2 MB
Memory cache size: 101.6MB / 16,128.0MB (0.6%)
Maximum thread count used by Camera Raw: 9
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 22MB / 32767MB (0%)
Displays: 1) 5120x2880, 2) 1920x1200

Graphics Processor Info: 
AMD Radeon Pro Vega 48 OpenGL Engine

Check OpenGL support: Passed
Vendor: ATI Technologies Inc.
Version: 4.1 ATI-2.11.21
Renderer: AMD Radeon Pro Vega 48 OpenGL Engine
LanguageVersion: 4.10


Application folder: /Applications/Adobe Lightroom
Library Path: /Volumes/Eisenstein/Lightroom 2015/Lightroom Catalog.lrcat
Settings Folder: /Users/gregwhite/Library/Application Support/Adobe/Lightroom

Installed Plugins: 
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Aurora HDR 2019
4) Blurb BookSmart
5) Canon Tether Plugin
6) DxO PhotoLab
7) DxO PhotoLab 2
8) DxO PhotoLab 2 Importer
9) DxO PhotoLab Importer
10) Export to Photomatix Pro
11) Facebook
12) Flickr
13) FocalPoint
14) HDR Efex Pro
15) HDR Efex Pro 2
16) Leica Tether Plugin
17) LR/Mogrify 2
18) LRT Export 5
19) Luminar 4
20) Nikon Tether Plugin
21) onOne Perfect Photo Suite
22) Perfect Effects
23) Perfect Portrait
24) Perfect Resize
25) PhotoFrame
26) PhotoTools 2.6
27) PhotoTune
28) SmugMug
29) Upload To Pictage

Config.lua flags: 
Features.disableGlobalTaskManager = true

AudioDeviceIOBlockSize: 512
AudioDeviceName: Built-in Output
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x4
CoreImage: true
GL_ACCUM_ALPHA_BITS: 0
GL_ACCUM_BLUE_BITS: 0
GL_ACCUM_GREEN_BITS: 0
GL_ACCUM_RED_BITS: 0
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon Pro Vega 48 OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 2.1 ATI-2.11.21
OGLEnabled: true
GL_EXTENSIONS: GL_ARB_color_buffer_float GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_instanced_arrays GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_rectangle GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_APPLE_aux_depth_stencil GL_APPLE_client_storage GL_APPLE_element_array GL_APPLE_fence GL_APPLE_float_pixels GL_APPLE_flush_buffer_range GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_packed_pixels GL_APPLE_pixel_buffer GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_specular_vector GL_APPLE_texture_range GL_APPLE_transform_hint GL_APPLE_vertex_array_object GL_APPLE_vertex_array_range GL_APPLE_vertex_point_size GL_APPLE_vertex_program_evaluators GL_APPLE_ycbcr_422 GL_ATI_blend_equation_separate GL_ATI_blend_weighted_minmax GL_ATI_separate_stencil GL_ATI_texture_compression_3dc GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_IBM_rasterpos_clip GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_barrier GL_SGI_color_matrix GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod

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Greg White

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Any ideas why my LR 2015 would be 10x faster at exporting than my LR Classic?
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Rikk Flohr, Official Rep

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I am curious if you disconnect your raid if your local drive export functions more quickly? It could be a valuable test. 
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Greg White

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Ok will test now...
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Greg White

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Ok will test now...
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Greg White

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Ok, I disconnected all external drives and USB hub/devices from iMac, used only 1 monitor and ran LR classic from internal SSD catalog, exported same 10 DNG images located on SSD.   The result is that it's now only 2 seconds faster.  It still takes 2 minutes to export 10 images. 
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Greg White

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I'll try a brand new LR Classic catalog and see if that does anything.
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Greg White

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Ok, just created a brand new LR Classic catalog with only the 10 DNG images in it.  Exported them using same parameters and it took 18 seconds.  Much better, but still almost twice as slow as my LR 2015 catalog that is 10 GB in size and has a 61 GB Preview.lrdata file.     So apparently LR Classic is significantly slower than LR 2015 and can't handle a large catalog like LR 2015?

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Rikk Flohr, Official Rep

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My test catalog is 275K image - not sure what you think is large for catalog size? 

I also tested CC2015.14 and the result was 15 seconds and 14 seconds. I wouldn't say Classic 9.1 is slower based upon a small export like 10 images. Statistically it is a single data point.  I would be more concerned about time difference on a 500 image export as that would tell us more. 

To the point of your original post, it appears that there may be an issue with your current catalog. Do you Optimize your catalog regularly? Do backups perform slowly as well when exporting?  If you, for example, create a duplicate catalog from your current using the Export as a Catalog, does it show a factor of 10x slower on export?
  1. Select All
  2. Ungroup All
  3. Select All again
  4. Export as catalog (no originals)
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Greg White

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BTW my Original LR Classic catalog was optimized before these tests, but I just re-optimized it and tested it again.  It made no difference.   Unless you have any suggestions, It appears I'm stuck using LR 2015 until LR Classic becomes significantly faster.  
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Greg White

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BTW my Original LR Classic catalog was optimized before these tests, but I just re-optimized it and tested it again.  It made no difference.   Unless you have any suggestions, It appears I'm stuck using LR 2015 until LR Classic becomes significantly faster.  
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Rikk Flohr, Official Rep

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The evidence so far points to a catalog problem. 

From CC 2015 to 9.1 there were two potential catalog upgrades that could be at issue.  From CC 2015 to Classic 7 required a catalog upgrade. From Classic 7/8 to 9 required an upgrade.  Not knowing your upgrade path I don't know which was done on to arrive at your current Classic Catalog. 

The telling test may be to upgrade your current CC 2015 catalog to 9.1 and perform the export there.  If that upgraded catalog performs as your current 9.1 catalog does, then we have something to show to the engineering staff. If it performs closer to your CC2015 catalog's speed, then it is likely your current 9.1 catalog has an issue acquired along the say that needs repairing or restoring. 
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Greg White

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Thanks for all of your help with this Rikk.  Yes that's what I did about week ago:  I upgraded my 2015 catalog to 9.1.   That's why both catalogs are the same size.   Is there a way to repair a catalog beyond the optimize button?  Although my test of a new 9.1 catalog was clearly MUCH faster than one upgraded from 2015, the new 9.1 catalog with just 10 images in it was still about 63% slower at exporting those 10 images than my big 2015 catalog (18 seconds vs 11 seconds).    Anyway, I'm still game for trying 9.1 even if it's 60% slower at exporting than 2015, as it has some features that 2015 doesn't have. Although that trade-off may not end up being worth it, I'll like to try.  Anyway, I don't know what to do next.    Maybe I should start a new catalog in 9.1 and just re-import all of my 200K+ images?     Or are you suggesting I try to to upgrade again and see if it's it better next time around?  
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Rikk Flohr, Official Rep

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I am recommending you perform the catalog upgrade again. 

Backup CC2015 and 9.1 current catalogs
With 9.1 Installed
Close Lightroom.
Restart Computer.
Don't run any other program.
Double Click on your 2015 catalog to launch Lightroom 9.1 and invoke the catalog upgrade. 

Test export performance to see if it is closer to your previous 9.1 catalog or your CC2015 catalog. 

How you proceed from there depends upon the results. 
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Victoria Bampton - Lightroom Queen, Champion

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> Here's the interesting part:  I did the exact same test with Lightroom CC 2015.13. The catalog sizes are the the same, I used the same images, saved to same locations, and the same export parameters. 

One silly one just to rule out - are there identical edits on all copies of the images? I'm just thinking that Classic has features that 2015.13 didn't, like profiles and Texture.
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Greg White

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Yes exact same edits.   These were raw DNG files (from a DJI Mavic 2 Pro Drone) with no edits on them.  I converted them straight to JPEG with no other adjustments.   
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h00ligan

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Add me to a list of people that are ready to cancel becuase lightroom performance is horrendous. 14 -27 seconds to burn one jpg and I can’t even change the exposure without lightroom saying loading or in some cases the window freezing.

I’ve tried everything listed in this thread. Photoshop even runs well. It’s insane how bad the performance of this program is.
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Rikk Flohr, Official Rep

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I just tested a raw to jpeg export here on Mac 10.14.6 and Windows 10. In both cases the export was less than one second. 

It sounds like you have something wrong with your particular instance of Lightroom. Please supply:

  1. OS Version Number
  2. Lightroom Classic Version Number
  3. Type of original
  4. Export Settings
  5. Basic specs for your computer (Ram, Free Drive Space, Location of Original, Location of Export.
Additionally. If you restart your computer and export does it still take 14-27 seconds?