P: Slow UI when using Mac and Custom Display Profile

You mean care about the stockholders first.

Yes they care  in much the same way as banks, utility companies and other giant corporations care.

*user  On that Macbook Pro, try Adobe RGB (1998) instead, any better? At the very least, the color should be better as this is a wide gamut display. 

The anger of some Adobe users is deep, but knowledge of human nature tells me they don't want to lose their homes if Adobe went under (so they do care). And some just care because they like people and want to be helpful.

*olga_runciman

Adobe are deaf.

Adobe don't care.

Adobe don't do customer service.

You're supposed to wait in line with your mouth shut and suck it up until they get around to it.

......Don't hold your breath.

I experience the same problem with LR10 (MacPro 5.1, 64 Go RAM, Radeon RX 580 8Go).

Moreover, some colleagues of mine have the issue with Adobe Premiere Elements 2021 on new iMacs 27 using Mac OS Big Sur. The only solution is to set to sRGB in System Preferences with both softwares...

Really problematic.

This problem is still going on with no end in sight. Is there anybody from Adobe that can at least assure us that they are trying to work on this problem?

As many others I have discovered that using SRGB profile is the only thing that lets lightroom work normally which of course means color calibration it’s not possible

I have discovered a semi work around in that after trying many profiles I have discovered that the Wacom Cintique pro RGB profile works with few delays and this closer to my own monitor calibration profiles but not perfect

However it is clear that it is a software problem so if you are listening Adobe please let us know that you were working on it or if not then we can move on.  

No lacks...

I’ve monitored GPU RAM and GPU:

GPU RAM: 35% used only

GPU:  5-10%

I downgrade to LR 10.0 And Now work again smoothly. 
The Upgrade is the problem. 

Your GPU lacks sufficient RAM for Lightroom V10 if your monitor is higher resolution than FHD. Only one of the cards is used by Lightroom BTW. 

I have the same problem.....

Mac Pro mid 2013 

RAM 64GB

Double AMD Radeon D300 3GB

The problem star when I use Texture......in LR Classic

I Must disable GPU Accel.