P: Slow UI when using Mac and Custom Display Profile

Bill, Thnx for your answer. Did you really think my video card is causing this issue that my well performing PC turns to a snail after this update to LRC10?

You are absolutely right...

Just saying, Lightroom would be worthless to me if I can't use my monitor profile as it will be to any professional who needs to deliver work in a colour managed environment. Hopefully what you say may help them fix the bug, have you sent a support ticket with this info?

Bill:

What website do you recommend that would allow us to compare various video cards to the requirements for Lightroom Classic AND Photoshop.

Thanks

What's your budget? 1st choice would be a Quadro RTX4000 then Quadro P4000 then Quadro P2200. These are all single slot cards that can handle four 4K monitors. GeForce cards are cheaper but not as durable and other than the video chip itself, use lower quality components. The best performing GeForce card per $ for Lightroom is the 2070 Super.

For used there is the Quadro K1200. While the P2200 is rated to be over 3 times faster for Lightroom, I didn't see any difference when I upgraded. Don't go below 4GB of RAM as that is the minimum for reasonable performance with a 4K monitor. 

One problem with the performance tests is that they are not performed on a wide range of of image sizes. Ideally the whole image will fit in the card memory. If the image has to be processed in chunks then artifacts can occur. Think about sharpening. That works on adjacent pixels. If half of an image can fit in the card then it has to process it in 3 chunks to avoid adjacency effects. Obviously as image size goes up, performance will deteriorate. Moving data back and forth to the card is a bottleneck. So ideally you'll be using a 40 lane processor, 16 lanes for the SSD and 16 for the video card.

Also be sure to choose Custom for the video card settings in Preferences, Performance tab. When using the K1200, a Lightroom upgrade killed performance on my system because it switched auto. For my video card and processor combination (very fast processor and moderate speed card), it wasn't fully using the card. Switching to custom and activating full use of the card, I experienced a several fold performance improvement for several of the develop sliders. Adobe is still in learning mode for video cards. 

*mpierce0519  Can you change monitor custom profile  to "SRGB" or AdobeRGB and share your feedback ?

Thanks

Mayuri

Can you change monitor custom profile  to "SRGB"  and share your feedback ?

Thanks

Mayuri

*Christoph Meyerdierks :Can you change monitor custom profile  to "SRGB"  and share your feedback ?

Thanks

Mayuri

@moritzfaehse :- Can you change monitor custom profile  to "SRGB"  and share your feedback ?

Thanks

Mayuri

Hi out there, as I read the performnce lack is an issue for us after the jump to LRC10 or PS21. Maybe I need a new Graphic Card. Please help to consider which one. I want the flawless and smooth editing back. If I just edit the CPU is maxed out. The card is limited BAISIC GRAPHIC ACCELERATION.

If you are able to recommend another video card please tell me here.

Thnx Tom

My specs:

Graphics Processor Info: 
DirectX: NVIDIA GeForce GTX 780 Ti (26.21.14.4614)

Lightroom Classic version: 10.0 [ 202010011851-ef6045e0 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.19041
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 3,6 GHz - tuned and running with 4.55GHZ
SqLite Version: 3.30.1
Built-in memory: 32715,9 MB
Real memory available to Lightroom: 32715,9 MB
Real memory used by Lightroom: 2304,1 MB (7,0%)
Virtual memory used by Lightroom: 2903,9 MB
GDI objects count: 823
USER objects count: 3101
Process handles count: 1946
Memory cache size: 32,5MB
Internal Camera Raw version: 13.0 [ 610 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX
Camera Raw virtual memory: 1041MB / 16357MB (6%)
Camera Raw real memory: 1045MB / 32715MB (3%)
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 3840x2160, 2) 1920x1080