Lightroom 9.2.1 general experience slow

[charlesR]

I did some searching and could not find a suitable solution so here goes. 

Specs:

AMD 3950X

64GB RAM

GTX1080ti

Multiple PCIe SSD 2TB + 1TB etc (Plenty fast space)

I mainly import RAW CR2 files (50Megapixels) and do Basic adjustemnts with some brush spots. Nothing major. (Possibly 50 photos at a time with roughly 2 - 4 brush edits per photo)

I have worked through all the online tips incl:

Optimize catalog

Clear cache

Re install Lightroom

GPU accelerayion is ticked

Cache size allocated 100GB

Previes medium and delete every 30 days

GPU, Windows, CPU drivers are all up to date.

Create new catalog and start over.

The general interface is slowwwww. Making adjustments to an image takes a few seconds to respond. Everything is just very laggy.

Any further help would be great.

Thanks

[dj_paige]

A common complaint. Large MP files, with local adjustments --> laggy. You don't say what size your monitor is (in pixels), could you provide that information please?

Also, local adjustments will be slower when you have the GPU acceleration turned on. Please try it with the GPU acceleration turned off.

[charlesR]

Thanks, my monitor is a 4K 32 inch.

I have tried gpu accel off. no difference.

My assistant's machine is a 9900K with gt1070 card and same screen. Same LR settings. no problem there...

So weird...

[dj_paige]

Is your assistant doing local adjustments like brushing or spot healing?

On your machine, can you check to see if the anti-virus is scanning the images and the preview cache? it should not be scanning those.

[charlesR]

Yeah, same project same adjustments. 

We use Bitdefender on both machines. I can't find any specific way to tailor Bitdefender in this regard...? 

Just funny that the 9900K machine works effortlesly.

[dj_paige]

There is "Manage Exceptions" in the Bitdefender AntiVirus panel.

[charlesR]

Thank you. I have found it and set an exception to the Lightroom cache folder. 

Any other exceptions? Like Premiere or Photoshop? Other Adobe software? 

Will see how it goes and report back. Thanks

[GoldingD]

Since you appear to have MS Windows OS based on rig, try, as a diagnostic, or temporary workaround, decreasing monitor resolution to sub 4K, adjust standard preview size to either automatic, or something under 2K as well.

Issue could be Lightroom Classic having to create all those pixels over and over again with is develop edit, especially when you get into adjustments.

[GoldingD]

GTX1080ti

so NVIDIA  GeForce GTX 1080ti, what GPU driver version? What does System Info in Lightroom Classic (/Help/System Info) tell you?

Have you used the probably installed NVIDIA utility Geforce Experience to check?

Per NVIDIA, latest is v446.14

[charlesR]

Thanks for checking in with some help. 

I have the latest NVIDIA studio driver installed 442.92 (released 04/16/2020)

Should I rather install the Game ready driver?

Herewith some info from system info:

Lightroom Classic version: 9.2.1 [ 202004070813-7699d98a ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.18363
Application architecture: x64
System architecture: x64
Logical processor count: 32
Processor speed: 3,4 GHz
SqLite Version: 3.30.1
Built-in memory: 65485,3 MB
Real memory available to Lightroom: 65485,3 MB
Real memory used by Lightroom: 4803,3 MB (7,3%)
Virtual memory used by Lightroom: 9745,2 MB
GDI objects count: 1005
USER objects count: 2659
Process handles count: 2294
Memory cache size: 483,0MB
Internal Camera Raw version: 12.2.1 [ 415 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 2982MB / 32742MB (9%)
Camera Raw real memory: 3004MB / 65485MB (4%)
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
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 GTX 1080 Ti (26.21.14.4292)

Adjusting res to sub 4K sounds like a plan too, will try this out. Thank you.

[GoldingD]

I have no idea on that