Performance regression browsing images on 4k monitor

[RH_1234]

I've been using Lightroom Classic for more than 12 years. I've got a big workstation with lots of CPU and GPU. Lightroom Classic worked great last year on this computer. Now it takes approximately 0.7 seconds to change photos in Library mode. I narrowed it down to the fact that my monitor is in 4k resolution. If I drag Lightroom to my second monitor (1440p resolution) the image switching performance is back to normal. If I lower the resolution of my 4k display to 1440p or lower, the performance is back to normal. This computer used to run Lightroom normally on this same display with all the same settings (same preview size, image import settings, etc). This is a performance regression and it makes Lightroom essentially unusable for my workflow culling and managing a lot of images from my shoots.

I'm on windows 11 23H2. Everything is fully updated (Windows 11.0.22631, NVIDIA graphics drivers 566.03, Lightroom Classic 14.0.1).

System Info is attached.

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

[GRPImagery]

I have noticed similar behavior for some time now on my 4k monitor.    The workaround I have deployed is to cull using grid mode with thumbnails dialed up as large as possible.  Its not a resolution, but at least gives good performance for culling.   

[Piotr5E5C · Accepted solution]

Try turning *ON* HDR processing (it's off by default). Completely unintuitive but it fixed my perfromance issues.

[RH_1234]

Holy cow, that worked! I would never have thought it would improve performance but it really did bring it back to where it used to be, perfectly snappy to browse images. I just spent two hours culling images with my monitor turned down to 1080, so this is great news 🙂

Thank you!

[John R Ellis]

@RH_1234:,

Can you please do the menu command Help > System Info and copy/paste the entire output here. That could help understanding why enabling HDR in Library fixes some people's performance issues.

[GoldingD]

Graphics Processor Info: 


DirectX: NVIDIA GeForce RTX 3080 (32.0.15.6603)

So NVIDIA GPU Driver v566.03. Two issues :

1. Fairly sure that is the Game Ready driver, not the Studio driver. For creative uses, NVIDIA reccomends using the Studio driver. The Studio drivers are more mature, they have been more thoroughly tested. The Game Ready drivers can be a bit untested, often out to make Gamers happy.

2. This particulay Game Ready Driver may have a bug as discussed in the following link:

• https://www.tomshardware.com/pc-components/gpu-drivers/nvidia-reports-that-latest-geforce-drivers-ar...

Over at the NVIDIA site:

• https://www.nvidia.com/en-us/drivers/

for Windows 11, and the RTX 3080,  the current Studio Driver is listed as 565.90 released 15 October 2024.

You may want to remove your current driver and install the Studio driver, when doing so select a custom install as to clean out the old crud.

[Piotr5E5C]

@GoldingD 

Not sure if you noticed but it's not a problem with the driver but with the crappy Adobe software. There is clearly a bug in the program, turning on HDR processing fixes the problem for many people.

[John R Ellis]

@Piotr5E5C: "it's not a problem with the driver"

It's entirely possible it's a problem with the graphics driver. When Enable HDR In Library is checked, different code is executed that might avoid a bug in the driver. It would help others if you tried the latest Studio driver and disabled Enable HDR In Library to test whether or not it is a problem with the Game Ready driver.

[Piotr5E5C]

@John R Ellis I am on Studio driver and faced the same issue. Also, I find it quite amusing that you are trying to say that (if it was the driver indeed) it is GPU driver that is causing absolutely no issue anywhere else (games, rendering software, etc.) but only makes Lightroom run extremely, unusably slow - it is the driver issue. Seriously, Adobe...

[John R Ellis]

@Piotr5E5C: "you are trying to say that (if it was the driver indeed) it is GPU driver that is causing absolutely no issue anywhere else (games, rendering software, etc.) but only makes Lightroom run extremely, unusably slow"

Indeed, there are many, many dozens of posts in this forum over the past few years where buggy, older graphics drivers have created problems with LR and updating fixed the problems, and many have commented that they didn't see issues with other apps. That's not at all surprising -- LR uses graphics processors much differently than other apps. Games render gazillions of little shaded triangles, whereas LR renders it's non-destructive Develop settings from an array of pixels. It's fallacious to assume that just because one app doesn't trip over bugs, another app, with completely different code, won't either.

[Jonathan Lipkin]

Hey everyone - 

I'm on a 2019 Mac Pro, 12 core 3.3ghz xenon, 192G RAM, 8TB internal ssd in LR 13.5.1

At times, switching from image to image in loupe view is very slow (2-3sec, while other times it is instantaneous) and I get the message 'Loading...' at the bottom of the screen.

If I stop and do something else, then come back, it seems to be a bit faster.

I have 1:1 previews rendered for the images, and the catalog and previews are on the internal ssd.

Catalog is pretty big - 283,000 images. I have 1:1 previews rendered for only for the most recent images, but this is where the slowness occurrs. Is there a way to speed this up? Is it slow hardware? Or something in LR I can optimize? I optimize the catalog every day or so

Thanks!

[GoldingD]

Is this in:

• the Library Module?
• the Develop Module?
• Both?

[Jonathan Lipkin]

Oh - I meant Library module, not Loupe module. When cycling through images quickly to look at them. Grid module also slows sometimes. I'm trying to figure out if this is drive speed, or something else.

Thanks

[abstract_Gem98BC]

I'm having the same issue.; switching to the next image takes 2-3 seconds in Library which makes culling and rating painfully slow and tedious.

It used to be very quick, and subsequent loading of the same image was instant. 

The problem has been getting worse with the last couple of updates.

Opening images is actually faster in Develop - near instant!

I'm on Windows 11. Ryzen 5950x, 64GB RAM, RTX3080, everything on fast nvme SSDs.

[abstract_Gem98BC]

The funny thing is, when viewing in 100% in Library, the images switched instantly. Go down to FIT or any number lower than 100, and it would slow down a lot.

But I managed to find a fix:
Even though I don't use HDR anywhere, enabling HDR in Library brought the speed back up!

[John R Ellis]

@abstract_Gem98BC: "Even though I don't use HDR anywhere, enabling HDR in Library brought the speed back up!"

Can you please do the menu command Help > System Info and copy/paste the line showing your graphics processor?  It looks like this:

DirectX: NVIDIA GeForce RTX 3080 (32.0.15.6603)

That could help understanding why enabling HDR in Library fixes some people's performance issues.

[John R Ellis]

Moderators, @Rikk Flohr: Photography: Please merge with this thread:

https://community.adobe.com/t5/lightroom-classic-discussions/performance-regression-browsing-images-...

A number of people have reported that enabled Preferences > Performance > Enable HDR In Library fixes severe performance problems, even though they're not doing HDR editing. It would be good to collect all those reports in one place.

[fani kurti]

I'm using Lightroom Classic 14.0.1 (latest update) on a Dell XPS 9720 with RTX 3060 on windows 11.

I am getting around 2 minutes export times when exporting with only the CPU active.

When i activate also the GPU for export (in the Lightroom performance settings) i was expecting to get faster export times (since the cpu will have aditional help) but i am getting twice as slow times... around 4 minutes.

How is this even possibile?

[John R Ellis]

Try updating your graphics driver by going directly to the manufacturer's web site:
https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html#solution-4

If that doesn't help, please copy/paste here the entire contents of the LR menu command Help > System Info -- that will let us see exactly which versions of hardware and software LR thinks you're running.

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut out as that is just so much dead space to us non-Techs and it takes up vast amounts of scroll space making the reply less readable and less likely that others will bother with your post. Also large amounts of text in a post also render the Translate function inoperable...

[fani kurti]

Thank you both for your reply.

Here it is:

Lightroom Classic version: 14.0.1 [ 202410161356-30922cfc ]

License: Creative Cloud

Language setting: en

Operating system: Windows 11 - Home Premium Edition

Version: 11.0.22631

Application architecture: x64

System architecture: x64

Logical processor count: 20

Processor speed: 2.9GHz

SqLite Version: 3.36.0

CPU Utilisation: 1.0%

Power Source: Plugged In

Built-in memory: 65220.6 MB

Dedicated GPU memory used by Lightroom: 52.7MB / 5996.0MB (0%)

Real memory available to Lightroom: 65220.6 MB

Real memory used by Lightroom: 5869.1 MB (8.9%)

Virtual memory used by Lightroom: 6570.5 MB

GDI objects count: 884

USER objects count: 2907

Process handles count: 3284

Memory cache size: 13317.4MB

Internal Camera Raw version: 17.0 [ 2043 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 2465MB / 32610MB (7%)

Camera Raw real memory: -5939MB / 65220MB (-9%)

Cache1: 

NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2: 

m:13317.4MB, n:0.0MB

U-main: 139.0MB

System DPI setting: 168 DPI (high DPI mode)

Desktop composition enabled: Yes

Standard Preview Size: 3840 pixels

Displays: 1) 3840x2160

Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 

DirectX: NVIDIA GeForce RTX 3060 Laptop GPU (32.0.15.6109)

Init State: GPU for Image Processing supported by default

User Preference: GPU for Image Processing Enabled

Enable HDR in Library: OFF

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: P:\LIGHTROOM\Fani Lightroom Catalog-v14.lrcat

Settings Folder: C:\Users\FK\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 

1) AdobeStock

2) Flickr

3) LRT Export 5

Config.lua flags: 

Adapter #1: Vendor : 10de

Device : 2520

Subsystem : aff1028

Revision : a1

Video Memory : 5996

Adapter #2: Vendor : 8086

Device : 46a6

Subsystem : aff1028

Revision : c

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Headphones (MEGABOOM 3)

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x26

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: NVIDIA GeForce RTX 3060 Laptop GPU/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 561.09

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 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[John R Ellis]

"DirectX: NVIDIA GeForce RTX 3060 Laptop GPU (32.0.15.6109)"

That driver is two months old.  Adobe is constantly improving its use of the GPU and new versions of LR often trip over existing bugs in drivers. Update to the latest Nvidia Studio driver:

https://www.nvidia.com/en-us/drivers/details/235907/

[GoldingD]

Thank you both for your reply.

Here it is:

......

Adapter #1: Vendor : 10de

Device : 2520

Subsystem : aff1028

Revision : a1

Video Memory : 5996

Adapter #2: Vendor : 8086

Device : 46a6

Subsystem : aff1028

Revision : c

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

....
By @fani kurti

So, Adapter #1 would be your NVIDIA GPU, Adapter #2 would be your Integrated Intel Video Control, and Adapter #3 would be the Microsoft Basic Render Driver. The MS Basic Render Driver is of no importance to the issue at hand.

This is not an absolute, but LrC could be having issues with the presence of Adapter# 2. Quite frankly while Adobe gives an integrated video control as an example of an issue in the following link, I think an actual second but different make/model GPU would be a bigger issue. But????

see:

• https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

[fani kurti]

Thanks for your quick reply.

I just upgraded the GPU driver and the results did not change. Actually it took 10 seconds more than last time i measured it.

Actually i just realised that the version 14.0.1 is so so sooooo slow, even at very basic tasks, like moving forward from one photo to the next one and next one at both "Library" module and "Develop" module... 

I was using version 12.5 until a few days ago and, moving forward from one photo to the next used to be virtually instantaneous at 4K resolution,  with no lag at all. Now, with the 14.0.1 version it requires 4-5 seconds to fully open.

For the first 2 seconds it opens at low resolution (almost pixelated) and than it updates to high 4K resolution after 4-5 seconds. This is so annoying for high number of photos. The GGrid module isn't as bad as the first two modules but still quite clumsy and not as responsive as version 12.5.

My laptop is just 2 years old. You would think that 64gb of ram, 16 Tb of fast nvme and i9 processor would be at least just OK... but its not apparently.

[John R Ellis]

When LR doesn't automatically enable use of the GPU for export, that's because it's making an educated guess that it won't help (or could hurt).

As for your general slowth in LR 14, one thing that has helped some people here is to set Preferences > Performance > Use Graphics Processor to Custom and select Enable HDR In Library. You'd think it shouldn't affect anything if you're not displaying HDR-edited images, but it has helped a number of people here.

If that doesn't help, others here might have better suggestions.