Lightroom Classic: GPU acceleration enabled slow/lag in Develop when zoomed at 100%

I have found out that GSYNC really is a technology that is ahead of Adobes imagination. If this is still a problem for you, try to disable GSYNC. No, not just enable it for Fullscreen only, disable it in NVidia Control Panel. It solves all the lag issues I have with Lightroom. My rig is comparable to yours except I have an RTX2070S.
Try it.

I am also experiencing this issue. I also chatted with adobe support about the problem, and he said that it could be related to my monitor as it’s been shown to experience flickering issues in some situations. I have not had any flickering issues until this point. However, it’s not just the slowness for me I am also experiencing flicking in some of the menus including file, edit, develop, etc. I also experience slowdowns in all areas of the program! Not just when developing, even exiting the program takes absolutely forever.

I really don't think this comes down to my monitor as everything was working fine a couple days ago. Suddenly upon launching lightroom classic I get slowness and flickering in menus. I turned off GPU acceleration in the preferences menu and everything works fine! No flickering and no slowdowns. Can anyone help me find a fix? I am worried that not having GPU acceleration will reduce my performance within the program.

I just built my PC with some pretty beefy components, so I really don't think this comes down to a hardware issue. I have also tried using the latest Nvidia Game Ready driver, and the latest Studio Driver. I also updated my main monitors firmware to the latest edition.

Specs:
Main Monitor with lightroom displayed: Samsung Odyssey G7 27inch Gaming monitor with HDR and GSYNC enabled
Second Monitor: Dell Gaming S2716DGR 27.0 GSYNC enabled
CPU: AMD Ryzen 9 5900x
GPU: Nvidia GTX 1080ti Founders Edition
SSD: Samsung 850 EVO 250GB SSD
OS: Edition Windows 10 Home
    Version 21H1
    Installed on ‎10/‎1/‎2021
    OS build 19043.1266
    Experience Windows Feature Experience Pack 120.2212.3920.0

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System info from lightroom:

Lightroom Classic version: 10.4 [ 202108071231-af9219b9 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Home Premium Edition
Version: 10.0.19043
Application architecture: x64
System architecture: x64
Logical processor count: 24
Processor speed: 3.7GHz
SqLite Version: 3.34.0
Built-in memory: 32711.1 MB
Real memory available to Lightroom: 32711.1 MB
Real memory used by Lightroom: 1630.1 MB (4.9%)
Virtual memory used by Lightroom: 3009.7 MB
GDI objects count: 832
USER objects count: 1919
Process handles count: 2187
Memory cache size: 109.2MB
Internal Camera Raw version: 13.4 [ 872 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 540MB / 16355MB (3%)
Camera Raw real memory: 611MB / 32711MB (1%)
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 2560x1440, 2) 2560x1440
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:
DirectX: NVIDIA GeForce GTX 1080 Ti (30.0.14.7212)

Did you try the latest Studio driver with Clean Install checked in Advanced mode.

this is an issue with Lightroom since its working fine in Library mode ,

Performance in Library module vs Develop module is not viable comparison. The Library module uses Library previews, these are small raster files. The Develop module uses the Camera RAW CACHE to store previews on the fly. Each time you add another edit, that preview gets recreated, and it gets recreated moving thru each and every edit till it gets to the last one, some of the edits are more complex, any mods via Adjustment Brushes are especially nasty. (Adobe actually recommends doing those near to last), if you are displaying at 4K and beyond, this gets very nasty, each and every pixel is recreated, one edit at a time. 

Same issue posted by different user:

https://www.reddit.com/r/Lightroom/comments/octpeg/laggy_panning_normal/

Check your Windows OS power savings for any changes back to defaults that may have occured via a OS update. (Change Power Settings to High Performance to Optimize Speed)

Check your NVIDIA controll settings for similar, and while you are at it update the driver (yous new enough to not be the cause) latest would be v471.68 not v471.41

1. CAMERA RAW SIZE

Your Camera RAW CACHE setting is set to default. The default value of 5GB, is much too low. This will affect develop module performance (not library module performance)

try something more like 20 GB, heck, if you have the space, just bump up to something like 70GB.

2. CAMERA RAW LOCATION

A Windows PC, do you have another hard drive to place the Camera RAW CACHE on? The Camera RAW CACHE and the Windows paging file will compete for read/wrights if on the same drive. LrC can see performance benefits if the Camera RAW CACHE is nit on C drive, and can take advantage of faster drives.

I see you placed the catalog on drive E. Is that a nice SSD? Both the catalog and the CACHE can leverage a fast drive (photos not)

https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html

https://fstoppers.com/originals/dramatically-speed-lightroom-performance-500071

https://digital-photography-school.com/10-tips-to-improve-lightrooms-speed-and-performance-without-additional-hardware/

Multiple users reported same issue here but for some days we cannot post on that forum anymore so I moved the topic here since Lightroom 10.4 was released and the issue is still not fixed:

https://community.adobe.com/t5/lightroom-classic/lightroom-classic-gpu-acceleration-enabled-slow-lag-in-develop-when-zoomed-at-100/td-p/12350034

Also, please post a screenshot from LrC /preferences/performance/

I have Windows 10 Pro with all the latest updates installed, latest Nvidia drivers and Adobe Lightroom updated

That word, latest, often considered a dirty filthy word, often wrong, Oh, you clearly stated LrC v10.4, but the rest?

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 as that is just so much dead space to us non-Techs.