nick_church_hbl0zc9vlqwo3's profile

23 Messages

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304 Points

Mon, May 3, 2021 10:22 AM

Lightroom Classic slow and stuttering on new, top-spec iMac

I am a wedding photographer using Lightroom 10.2 on a 2021 iMac with everything upgraded to the max, but have performance problems that are driving me crazy!

Lightroom Classic slows down and performance starts stuttering in Develop Module, especially when using local adjustments. The 'brush' is the biggest culprit, but spot-heal can also be super slow - like 10 seconds to render the change.

The symptoms of the problem are that everything is fine for 5-10 minutes after launch, then soon enough the brush tool starts to glitch. Even when not brushing, moving the brush cursor around in a circle is not smooth. It stops for a fraction of a second and then continues. Once you start brushing, this stuttering makes things unusable. 

I have GPU turned on (upgraded to the most powerful GPU when ordering the iMac). If I turn it off, then the cursor does not glitch, but then the effect of the brush is so slow that it takes a couple of seconds to catch up. So as long as I work veerrrrryyyy slowly I can limp on. Problem is that as a wedding photographer I have up to 1000 pictures to edit, so this slowness is not workable.

I have a MacBook Pro also (2018) which has no such problems. Ironically I upgraded the iMac to help with performance of LR, PS and Final Cut. 

Looking at ActivityMonitor shows nothing unusual in CPU or GPU usage when the problem occurs.

I am a professional photographer and educator, with workshops on LR, PS etc and also before photography was a software architect. I mention these things to give confidence that I have tried everything obvious I can think of to resolve these issues before coming here.

My catalog is on my internal SSD, and images are on an external HDD (how I've been setup for 5 years). But I have tried creating a smaller catalog with RAWs on the same internal drive, but it makes no difference. 

Really hoping for some help to sort this, or at least some confirmation that Adobe are aware of the issue and are looking for a fix.

Thank you

Nick Church

Nick Church Photography

www.nickchurchphotography.co.uk

Responses

23 Messages

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304 Points

4 d ago

Lightroom Classic version: 10.2 [ 202103041821-226a1211 ]
License: Creative Cloud
Language setting: en-GB
Operating system: Mac OS 10
Version: 10.16.0 [20E232]
Application architecture: x64
Logical processor count: 20
Processor speed: 3.6 GHz
SqLite Version: 3.34.0
Built-in memory: 131,072.0 MB
Real memory available to Lightroom: 131,072.0 MB
Real memory used by Lightroom: 12,042.3 MB (9.1%)
Virtual memory used by Lightroom: 21,605.0 MB
Memory cache size: 6,333.8MB
Internal Camera Raw version: 13.2 [ 738 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1115MB / 65535MB (1%)
Camera Raw real memory: 1118MB / 131072MB (0%)
Displays: 1) 5760x3240, 2) 2560x1440

Graphics Processor Info: 
Metal: AMD Radeon Pro 5700 XT

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/nickchurch/Documents/Nick Church Photography/Lightroom/Lightroom Catalog-2-2-v10.lrcat
Settings Folder: /Users/nickchurch/Library/Application Support/Adobe/Lightroom

Installed Plugins: 
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Facebook
4) Flickr
5) Loupedeck2
6) Nikon Tether Plugin

Config.lua flags: None

AudioDeviceIOBlockSize: 512
AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default (Scarlett 2i2 USB)#{comment}DVAAU-4201250: Open the audio hardware preferences page.
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x77
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
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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 5700 XT OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 2.1 ATI-4.4.17
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 

Nick Church Photography

www.nickchurchphotography.co.uk

Champion

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6.6K Messages

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110.1K Points

3 d ago

You've got two screens connected, which one's Lightroom on? Does it make any difference if Lightroom is on the lower resolution screen? And do you just have a single LR window open or both?

Victoria Bampton a.k.a. The Lightroom Queen

www.lightroomqueen.com

Author of Adobe Lightroom Classic - The Missing FAQ and Adobe Lightroom - Edit Like a Pro books.

23 Messages

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304 Points

As always... it's never straightforward. If I simply move from the iMac display to my external monitor then I get strange behaviour; when brushing, the whole image flickers between slightly lighter and darker.

So, restart Lightroom to correct that, and all is fine on the second monitor. But that's because I restarted Lightroom. In 5 minutes I'm sure it will start glitching back to square one.

The annoying thing is, that when it's good, it's great! So responsive and the GPU is so smooth... then it all goes south 

Nick Church Photography

www.nickchurchphotography.co.uk

23 Messages

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304 Points

Yep - on second monitor...5 mins later... stuttering...

Nick Church Photography

www.nickchurchphotography.co.uk

23 Messages

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304 Points

One thing that does improve (I won't say 'fix' as it's not optimal) is to reduce the resolution of the display to 1080p. 

Lightroom cannot seem to effectively drive the higher resolution display (my 2nd monitor is only 2560 x 1440 so not 4k or anything! I don't like working at 1080p for various reasons. Not least because if I wanted to run at this resolution, I could have probably saved myself £6k when choosing a setup.

This is a problem that needs resolving.

Nick Church Photography

www.nickchurchphotography.co.uk

23 Messages

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304 Points

...hmm changing back to full resolution seemed to re-set the problem. It worked fine for 5 minutes of editing, then glitching again. 

Definitely something related to the GFX/GPU

Nick Church Photography

www.nickchurchphotography.co.uk

Champion

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6.6K Messages

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110.1K Points

Good detective work. I wonder what would happen if only one screen was plugged in, does that make a difference? And it doesn't glitch if GPU is turned off in Prefs, right?

Victoria Bampton a.k.a. The Lightroom Queen

www.lightroomqueen.com

Author of Adobe Lightroom Classic - The Missing FAQ and Adobe Lightroom - Edit Like a Pro books.

23 Messages

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304 Points

It makes no difference if I use one display or two. The only thing that improved it was reducing to a lower resolution (1080p) or by reducing the window size. GPU Off gave laggy behaviour that was difference but equally unusable.

But some news.. I have been able to have a bit of a test today with 11.3.1 (Big Sur) update and it 'seems' to be better. It still glitches, so whatever the problem is that seems to fill the GFX pipeline seems still present BUT it seems to now free itself so that you can start working without having to re-start Lightroom. 

Who knows what is in 11.3.1 OSX but I suspect graphics driver updates or related changes are included. No way of knowing as Apple is pretty cagey about info like this.

I would be really keen to hear from anyone that has had the same issue to see whether 11.3.1 gives a similar improvement.

it's not 'fixed' by any means, as it should not glitch at all on a system with this spec, however, from my limited testing I think it's usable again. 

Will post more details from continued testing.

Nick Church Photography

www.nickchurchphotography.co.uk

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6.6K Messages

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110.1K Points

Those are good clues, thanks. Yeah, I suspect you're right about graphics driver updates, especially since it's a very recent machine.

Victoria Bampton a.k.a. The Lightroom Queen

www.lightroomqueen.com

Author of Adobe Lightroom Classic - The Missing FAQ and Adobe Lightroom - Edit Like a Pro books.

9 Messages

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144 Points

3 d ago

I have very similar behaviour on a slightly different configuration.

I use only one the iMac display, not the external LG.

The sluggish behaviour starts after some time working on the Develop module and extends to the Mac, not only the LrC.   

Restarting LrC solves the problem for some more time.

Lightroom Classic version: 10.2 [ 202103041821-226a1211 ]

License: Creative Cloud

Language setting: en-GB

Operating system: Mac OS 10

Version: 10.16.0 [20E232]

Application architecture: x64

Logical processor count: 36

Processor speed: 2,3 GHz

SqLite Version: 3.34.0

Built-in memory: 65 536,0 MB

Real memory available to Lightroom: 65 536,0 MB

Real memory used by Lightroom: 5 066,7 MB (7,7%)

Virtual memory used by Lightroom: 25 195,8 MB

Memory cache size: 330,9MB

Internal Camera Raw version: 13.2 [ 738 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 2135MB / 32767MB (6%)

Camera Raw real memory: 2338MB / 65536MB (3%)

Displays: 1) 5120x2880, 2) 5120x2880

Graphics Processor Info: 

Metal: AMD Radeon Pro Vega 64

23 Messages

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304 Points

Yes, that's the exact same behaviour. I don't use two monitors at the same time. The tests above were just moving the window between iMac and my external BenQ.

I'm at least relieved that someone else is having the same identical issue! 

Nick Church Photography

www.nickchurchphotography.co.uk

23 Messages

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304 Points

@joao_ferrand

Hi - have you tried updating to the latest Mac OSX 11.3.1, released yesterday. I am trying to work out if the situation has improved, and would like your view

thanks  

Nick Church Photography

www.nickchurchphotography.co.uk

40 Messages

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470 Points

3 d ago

Yes.

I have a 16" Macbook Pro 2019, 32GB RAM. I like to work at my desk with an external monitor, and LR is then on that monitor. This configuration is likely to get slow, but I think that is more likely related to the length of my work sessions, which can go for hours there.

I also sometimes work on just the laptop screen with HDs attached via USB C or Thunderbolt 3, I can't remember which that one is. I sometimes come to the conclusion that this setup is faster, but then sometimes it bogs down so badly it is a disaster. (A disaster because I found that if I my workflow gets ahead of the application, it will crash if I then do Copy Settings in the Develop module). This was the case the other day, when I was working for a long session on just the laptop, and it bogged down, it seemed worse than ever.

I find it bogs down with my large catalog but not my smaller secondary catalogs (I have catalogs for different aspects of my workflow, for example an "intake" catalog that is for preliminary sorting and decisions about where to store images, and my export for web catalogs, where I export various size jpgs for my web site using different smart exports with Jeffrey Friedle's plugin.) I guess it is because I never spend a lot of time in those catalogs, so they don't get a chance to slow down? Or there are fewer files? 

My main catalog has about 276,xxx photos in it, which are from a mix of different cameras. The bulk of them are from full frame mirrorless, and the rest are a mix of Micro Four Thirds, older Nikon DSLRs. They are a mix of .DNG and native raw formats. That 276,xxx number includes an good proportion of virtual copies: different crops and interpretations of images.

Quiting LR and backing up/optimizing the catalog seems very likely to help quite a lot. But that takes a chunk of time. I'd rather do that at the end of a work session than during it.

I'm not using the brush tool at all. I use Photoshop for serious image editing. Lightroom is my sketchpad.

For me "acceptable" performance would be for one thing a level of performance I had a couple of years ago using a much older computer!

"Acceptable" performance would be if my working speed was just barely ahead of the application; if it lagged a very little bit but caught up quickly. In fact I can easily get a couple of steps ahead, and then it will bog down for a while trying to catch up to me.

A set of steps might be, while constantly switching between Grid, Loupe, and Develop: Loupe: rate something, right arrow to next photo, switch to develop, change exposure, hit a number to rate, right arrow, again increase exposure, back to Loupe and change a keyword or two, then copy settings, rate, next photo, paste exposure, make a virtual copy, choose crop tool -- by this point if I've been working for a while, it has bogged down and I have to wait for the crop tool for maybe 6 seconds. As it starts to bog down tasks like working with keywords can get slow so I have to wait for seconds. Making a virtual copy can take a few seconds.

40 Messages

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470 Points

I should have mentioned that like Nick, my catalog is on an internal SSD while images are on external HD, connected usually via Thunderbolt.

However, one catalog I work with, as mentioned above, my preliminary input sorting catalog, is also on an external HD. That catalog does not give me trouble that I've noticed, but I rarely spend more than a half hour at a time in it.

40 Messages

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470 Points

The other thing that occurs to me, reading my long post above, is that the catalogs that don't give me trouble are catalogs where I'm less likely to use "deeper" aspects of the develop module, like black and white conversions or cropping. In my preliminary sort catalog I will sometimes use an exposure adjustment and paste that into a series of similar exposures. Sometimes I will even use "auto" and then eliminate the egregious saturation overload, and then copy and paste that set of settings into a series of images. But mostly, in these catalogs everything is getting rated and I'm in Loupe mode. In my export for my website catalog, I never touch the develop module. That is only keywording and exporting. Those catalogs never bog down on me like my main catalog where I am working on images more.

9 Messages

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144 Points

3 d ago

Just to update, I also have here another iMac with the system info below and working without problems, for now.

Lightroom Classic version: 10.1.1 [ 202101041610-8c69aa4e ]
License: Creative Cloud
Language setting: en
Operating system: Mac OS 10
Version: 10.15.7 [19H524]
Application architecture: x64
Logical processor count: 8
Processor speed: 4,0 GHz
SqLite Version: 3.30.1
Built-in memory: 24 576,0 MB
Real memory available to Lightroom: 24 576,0 MB
Real memory used by Lightroom: 4 016,3 MB (16,3%)
Virtual memory used by Lightroom: 11 095,2 MB
Memory cache size: 1 667,8MB
Internal Camera Raw version: 13.1 [ 658 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1107MB / 12287MB (9%)
Camera Raw real memory: 1115MB / 24576MB (4%)
Displays: 1) 5120x2880
Graphics Processor Info: 
Metal: AMD Radeon R9 M395X

 

9 Messages

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144 Points

3 d ago

One more thing, when working on Develop module with the sluggish behaviour and if I open a image on Ps (right click > Edit in Adobe Photoshop) and then if I try a clone stamp tool the behaviour is the same, slow and painful. 

If I go back to LrC and change to the Library module and then back to Ps, the problem vanishes and everything work fast as usual.

I did not test more carefully but this happens also in the finder and I get the feeling also in all other open apps too.

It looks that if LrC has the Develop module active and sluggish, it  compromises the normal behaviour of all the system on the iMac.

23 Messages

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304 Points

3 d ago

I have installed 11.3.1 Big Sur update... and I'm trying to work out if there is any difference. I 'feel' like the issue is still present but less severe as it seems to sort itself out without needing a LRC restart. 

Will continue testing with a proper edit this afternoon, as I've found that's the only real way to test it.

If anyone else has experienced this issue, I would be really grateful if you could comment with your experience pre and post 11.3.1 update

thanks 

Nick Church Photography

www.nickchurchphotography.co.uk

40 Messages

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470 Points

I'm still on (most recent) Catalina. Since I go to Photoshop (and via the finder) for work with a brush, I don't know if I've got the stuttering brush, but it may be that we have the same problem that is either OS independent or goes back to Catalina.

Related note: is Big Sur OK for fine printing? I got an email from Red River Paper a few months back saying Big Sur was not ready for color managed printing -- don't know why -- so I've wondered about that.

40 Messages

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470 Points

I'll try brush adjustments in LR during a session today and see how it goes.

23 Messages

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304 Points

2 d ago

I have been able to have a bit more of a test today with 11.3.1 (Big Sur) update and it 'seems' to be better. It still glitches, so whatever the problem is that seems to fill the GFX pipeline seems still present BUT it seems to now free itself so that you can start working again quite quickly without having to re-start Lightroom. 

Who knows what is in 11.3.1 OSX but I suspect graphics driver updates or related changes are included. No way of knowing as Apple is pretty cagey about info like this.

I would be really keen to hear from anyone that has had the same issue to see whether 11.3.1 gives a similar improvement.

it's not 'fixed' by any means, as it should not glitch at all on a system with this spec, however, from my limited testing I think it's usable again. 

Will post more details from continued testing.

Nick Church Photography

www.nickchurchphotography.co.uk

40 Messages

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470 Points

2 d ago

I had a weird day in that LR 10.2 did not lag all day even with a fair work session. I also tried the brush, and it was smooth. I did not need to restart it.

23 Messages

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304 Points

Have you updated to the new MacOS?

Nick Church Photography

www.nickchurchphotography.co.uk

40 Messages

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470 Points

2 d ago

No, I've mentioned before: I'm on Catalina. I hesitate to update because a paper vendor (Red River Paper) suggested at one point that color managed printing was not ready in Big Sur. That was a few versions of Big Sur ago. I don't know what the issue was, but I don't need Big Sur for anything. I'd upgrade for a performance boost, if I could still print.

23 Messages

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304 Points

@jlehet

Ah yes, sorry I forgot that. I have no idea about printing as it's not something I do myself, I use an external print lab 

Nick Church Photography

www.nickchurchphotography.co.uk

1 Message

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60 Points

2 d ago

I'm in the same boat with my iMac Pro, LR works fine for about five minutes of intensive work and then slows down.  I use a lot of adjustments, so there is a lot of work, but everything works fine in 9.4.   I'll try updating to 11.3.1 tonight but I don't imagine it will make much of a difference.

My experience matches up with Nick's, although I just use the main iMac screen.

Ironically, on my laptop the issue went away after one of the LR updates (I skipped a few, so I don't know which one).

23 Messages

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304 Points

From my research I think v9 LR does not seem to have an issue. But of course going back is not a possible fix as the catalogue was changed for v10. 

I use a lot of adjustments too, and have the same slow down after 5 mins. I have tested this fairly rigorously now with 11.3.1 from Apple (I used to run a software testing company) and I’m seeing that the situation is definitely improved, although still need to edit a commercial shoot to be sure. 

I am seeing that LRC still starts to get bogged down at the same point (5 mins in), but that the slowdown is not to an unusable level and given a couple of minutes it is back to normal speed.

previously, once it got bogged down it was game over until Lightroom was restarted.

From a software engineering viewpoint, I suspect that LRC is not using the GPU pipeline correctly or efficiently, and that once a bottleneck happens, it never clears. Something in OS or AMD drivers has probably now changed to detect the problem and clear any bottlenecks automatically. 

suspect LR still needs to change to stop whatever happens that degrades performance after five minute. 

I would be really keen to hear your experiences after updating. 

Nick Church Photography

www.nickchurchphotography.co.uk

7 Messages

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120 Points

Yeah, I have the same exact issues with my Mac Pro.  It works great for a few mins but then it becomes unusable. Sliders, brushes, spot fixes everything is so laggy that it's not even worth trying to edit on.  I end up saying screw the desktop that I paid way too much money for to be sitting idle for this long.

I have a couple of friends with the same setup and they have spent hours on end with adobe only for them to say there is no issue.  There is clearly an issue.

I would have to agree that it's GPU issue and adobe still thinks it's an eGPU or something.

23 Messages

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304 Points

2 d ago

On an interesting side note. I have spoken to Adobe about this who claim that there is no known issue. 

Their suggestion repeatedly was to update AMD drivers. This is of course not possible on MacOS as drivers are built into the OS. 

It does not give you much confidence when their own tech support makes the most basic errors. 

Nick Church Photography

www.nickchurchphotography.co.uk

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6.6K Messages

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110.1K Points

Er, yeah, Adobe support is great when you need help with installation or account problems, but there are a lot more technical experts here for actual problems.

Victoria Bampton a.k.a. The Lightroom Queen

www.lightroomqueen.com

Author of Adobe Lightroom Classic - The Missing FAQ and Adobe Lightroom - Edit Like a Pro books.

7 Messages

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120 Points

3 h ago

I have a new Mac Pro that was released about a year and a half ago.  I have never been able to run lightroom smoothly on it.  I have contacted Adobe support multiple times and every time they suggest a few things that do right away improve performance while on the phone with them but as soon as you hang up and go back to working 10-15 mins later its back to the god awful sluggish sliders and slow graphics. 

I know I'm not the only one experiencing this I have a couple of friends with basically the same setup and they have the same issues.  How is this not a solved issue by now?  I thought this was fixed in the latest update but again it's not. The only way to use Lightroom on my Mac Pro is if I restart the computer and then it seems to work for a short period of time but then again bogs down and acts all laggy.

Note: This comment was created from a merged conversation originally titled Lightroom Classic: Usability of Lightroom on New Mac Pro absolutely terrible

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137.1K Points

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