(Windows) LrC 12.4 is very sluggish, going into full screen, doing very funny things. no menus

[bellevue scott]

LRC 12.4 on Windows 10 today is being super super sluggish. And It goes into full screen with no menus. If I click on the icon in the task bar, then I'll get my menus back for a minute and then it goes wonky again with just one image, no film strip, no menus... 

entire monitor screen looks like this

{Thread title updated by moderator}

[bellevue scott · Accepted solution]

It may be due to LRC going into different screen modes. I've got dual monitors and the main monitor is going into full screen mode or full screen mode with menus, but when I set it to normal it behaves well. I still cant' figure out why it's going into full screen mode though... 

[Sameer K]

Hey, @bellevue scott. I'll need more info to help you figure this out. Please share the system info of Lightroom from Help > System info > Copy & paste into a text document > Upload and share with us here. 

What troubleshooting steps have you tried?

For now, try these:

• Reset Lightroom Classic following the second (manual) method from this article: https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html

• Go to Lightroom > Preferences > Performance > Use Graphics Processor > Set it to Off if it is on Custom or Auto. If this shows you any differences, please check this article to troubleshoot further: https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

Looking forward to hearing back from you. Thanks!
Sameer K

[bellevue scott]

Device name XX
Processor AMD Ryzen 9 5950X 16-Core Processor 3.40 GHz
Installed RAM 128 GB
Device ID 7B0C736D-FAB4-4F65-A7D0-39BE98AA28C2
Product ID 00330-71458-41090-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch Pen and touch support with 10 touch points

It seems to have resolved itself. I think the slowness was Windows, not LRC. And the screen issue I resolved below. It was stuck, but after cycling through different screen modes a few times it started behaving in Normal Screen Mode. 

[Gabor Lenart]

LR 12.4 is sadly very very slow, I don't know what happened but performance is really really bad. Hope they fix it very soon because it's almost unusable.

[Sameer K]

Hey @Gabor Lenart. Welcome to the Lightroom Classic community. Like the post above, I'll need the system info of your Lightroom Classic. What troubleshooting steps have you tried already? Does it slow down after a specific set of steps? Is there a noticeable pattern to this behavior?

Besides Lightroom getting slow, check the Processes in the Task Manager for unexpected read/write operations.

To begin troubleshooting, test some variables like:

• Unplug any external peripherals & use wired input devices.
• Unplug external drives.
• Temporarily, unplug extra displays & only keep one active at a time.
• Disable GPU usage following the steps I've shared above.

Let me know how it goes. Thanks!
Sameer K

[Gabor Lenart]

If I disable GPU usage, LR works really really bad. If I check on custom, and turn off some of the boxes, just keep "gpu for display", it is the same speed of full acceleration, nothing really changes. Now I keep it on Auto.

It is slow without any external peripherals too :S I only use an external SSD, my catalog is on it so as the files I'm working on.

Lightroom Classic version: 12.4 [ 202306052221-b70c0975 ]
License: Creative Cloud
Language setting: en-GB
Operating system: Mac OS 11
Version: 11.7.7 [20G1345]
Application architecture: x64
Logical processor count: 8
Processor speed: 4,2GHz
SqLite Version: 3.36.0
Built-in memory: 24 576,0 MB
Real memory available to Lightroom: 24 576,0 MB
Real memory used by Lightroom: 1 981,3 MB (8,0%)
Virtual memory used by Lightroom: 9 328,4 MB
Memory cache size: 290,4MB
Internal Camera Raw version: 15.4 [ 1508 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 407MB / 12287MB (3%)
Camera Raw real memory: 410MB / 24576MB (1%)
Standard Preview Size: 5120 pixels
Displays: 1) 5120x2880

Graphics Processor Info:
Metal: AMD Radeon Pro 580
Init State: GPU for Export supported by default
User Preference: Auto

[Sameer K]

Thanks for the details. You are working with macOS 11, & macOS delivers GPU-related updates via OS updates. Please update the macOS to the latest possible OS version.

Is the SSD plugged into the macOS or via a USB hub? As a test, go to File > Create a new test catalog on the internal drive > import some images > test the speed now.

Let me know how it goes. Thanks!
Sameer K

[Gabor Lenart]

Yeah, I just did that right now, I created a temporary test catalog on the internal SSD, it is the same speed as with the external SSD. And yes the external SSD is plugged directly into the iMac via USB-C.

[Gabor Lenart]

It takes 3 to 3,5 seconds to jump from one photo to another in Develop Module... 😞

[Peasac]

I have typically same issue on Win 10. So slow in develope mode, also in Library. The interface of Lightroom is slow too.

I don't know what happened, but after latest update, I can't work in Lightroom. I tried all common tips for speed up lightroom. Tried different versions of Lightroom and Drivers. In the end, I have driver and Lightroom updated to the latest version. I tried everything uninstall, clear all folders and files, but nothing happened.

Lightroom Classic version: 12.4 [ 202306052221-b70c0975 ]

License: Creative Cloud

Language setting: en

Operating system: Windows 10 - Business Edition

Version: 10.0.19045

Application architecture: x64

System architecture: x64

Logical processor count: 6

Processor speed: 2,8GHz

SqLite Version: 3.36.0

CPU Utilisation: 11,0%

Built-in memory: 49022,0 MB

Dedicated GPU memory used by Lightroom: 1370,1MB / 12129,0MB (11%)

Real memory available to Lightroom: 49022,0 MB

Real memory used by Lightroom: 9548,0 MB (19,4%)

Virtual memory used by Lightroom: 12202,1 MB

GDI objects count: 852

USER objects count: 2291

Process handles count: 2491

Memory cache size: 5770,2MB

Internal Camera Raw version: 15.4 [ 1508 ]

Maximum thread count used by Camera Raw: 4

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 2300MB / 24511MB (9%)

Camera Raw real memory: 2307MB / 49022MB (4%)

System DPI setting: 144 DPI (high DPI mode)

Desktop composition enabled: Yes

Standard Preview Size: 3840 pixels

Displays: 1) 3840x2160, 2) 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 (31.0.15.3667)

Init State: GPU for Export supported by default

User Preference: GPU for Export enabled

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

Library Path: C:\_LIGHTROOM_MAIN_CATALOG\MAIN_CATALOG_2023\MAIN_CATALOG_2023.lrcat

Installed Plugins: 

1) AdobeStock

2) Flickr

3) Nikon Tether Plugin

Config.lua flags: None