P: Slow UI when using Mac and Custom Display Profile

I was aware, because I subscribe to this forum. So remember to subscribe here, and check these emails so that you can see if there are issues before you jump into the next version.

As a self-employed individual who has been using Apple since the IIe in the 80's, I'm quite fine with attending to the actual Mac OS. And I'm running Mojave, which is solid. Unfortunately the new color grading features and other promises of improvements with LR 10 were too attractive, and I did wait two months until 10.1 was released to upgrade.

I was not aware of the risk I was taking, or the known problems, although Adobe certainly was. If I deliver my work product in half-baked form and ruin my client's deadlines, is it my client's fault? Is that how this works? 

Here's the real solution: Did you ever see a company computer user without an IT Department (onsite or off)? You are your own company, get an IT department! If I was your IT, (and for 25 years, I was a Mac IT Pro), you would NEVER have moved to either Big Sur or LR Classic V.10...yet. Be conservative in your device upgrades, look hard before you leap!

Also: NEVER use Auto-update, turn that feature off in Creative Cloud. Wait until you get the "all clear" from Jeff Harmon (Photo Taco Podcast) or Victoria Bampton (lightroomqueen.com) that it's OK to upgrade. Same with your MacOS, listen to The Mac Observer's "The Mac Geek Gab" podcast (or read the website). I'm still on Catalina, I NEVER upgrade until the ".2"  “.3” version, giving Apple time to squash the usual bugs.

SpectraView's are internally calibrated yes. There is (there needs to be) a simple matrix profile built as well. That profile doesn't produce the bug on this end. 

So, if I understand this correctly, the NEC SpectraView PA271Q is calibrated without involving custom monitor calibration on the desktop/OS end, and thus you can use Lightroom and Photoshop without triggering their bug, yet still have a color-correct environment? 

@edmund_gall Thanks, I've already seen that one, and followed the advice (use standard profile), but it only helped a little. The UI is still very 'laggy' when scrolling the library files, or even scrolling the tools palettes, or using the brushes, etc etc, and it still crashes multiple times per day. Everything is slow - even opening multiple files as layers in Photoshop (and my working projects are on a RAID 0 SSD array that delivers a staggeringly fast 6k MB/s i/o).

I cannot believe Adobe is not delivering any timeline for a fix, nor are they advising people of the problem before upgrading to 10. If I go back to 9.4, it will take days to re-import the massive library to 9.4, and as I understand it I will lose all edits to RAW files I have ever made (unless I also separately export all RAW files to TIFF, which god only knows how many weeks it would take LRC to do that), since my entire 500,000+ image library has all been converted to LRC 10. This would also balloon the overall size of the library. 

The same goes for moving to Capture One. It really seems to be an intractable situation no matter which direction I go, and I am already months behind on deliverables to clients.

Adobe's handling of this entire clusterfv©# is beyond the pale. 

@andrew_rodney Are there any monitors you would recommend that have built-in color calibration, so I could at least fix that issue? 

Absolutely. I've never had this bug issue running a MacBook Pro with an external NEC SpectraView (PA271Q) and others have reported this as well, again depending on the display. 

But again, Adobe is aware of and has fixed this bug, the fix is coming. What you should do is contact Rikk here and tell him about your issues and with a full report of your system, Adobe may, again may, reach out to you to test this.  

@andrew_rodney Are there any monitors you would recommend that have built-in color calibration, so I could at least fix that issue? 

I have always used Spyder calibration, but I am due for a new monitor anyway. I am not clear though how some of these monitors that supposedly have 'built in' calibration work; Do they obviate the need for 'custom monitor profiles' at the computer end - such that I could have the computer set to a 'standard profile' and the monitor would ostensibly calibrate itself without 'involving' the actual computer? (the point being a workaround for Adobe's inability to integrate custom monitor calibration profiles)?

Thanks for any insight. 

I do not care for the Windows environment, and having a massive library and a dozen devices all in the Apple ecosystem, it would make vastly more sense to simply abandon Lightroom and move to Capture One and learn that software, which overall has better RAW conversion for Fuji GFX files anyway. 

At least the mild headache of learning Capture One would net better RAW conversion, vs the cost of a full new PC setup and all the headaches and frustrations attendant to switching my laptop and desktop to a foreign OS. I have far too much on my plate already to even contemplate such a thing. It would be faster and easier to either move to a 'known good' Mac hardware configuration (if there even is one), or keep my hardware and simply move to Capture One, or taking the time to move backwards to Lightroom 9.4.  

Moving everything to a new OS environment is literally the most time-consuming, headache-inducing choice someone in my shoes, with no tech support, could make, and would also still be very expensive. 

Hi *Maestro : see the top-most official response by Adobe rep @Rikk  in the following thread: https://feedback.photoshop.com/conversations/lightroom-classic/lightroom-classic-slow-ui-when-using-mac-and-custom-display-profile/5f91bbf7917fbb3a9935742e

No need to read the rest of that thread...