Lightroom Classic: Export very slow

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

any news on this ? 

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/

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% 

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 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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.

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 ??? 

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?

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

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:

Everything of this points are okay already written above

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

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.

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.  

> 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.