P: Slow UI when using Mac and Custom Display Profile

It’s a solution if color isn’t important but who uses Lightroom not caring about color?... for serious work not having access to color calibration renders Lightroom useless. I Hope this bug is fixed soon 🙏

@Bailey Mohr did you see and try what Tracy wrote?

Then found this thread. Changed monitor profile to SRGB.....Bingo! Joy of joys all good, for now.

Same. Everything is painfully slow sometimes it takes over in a minute for me to click through from one photo to the next. I have done everything I know to optimize Lightroom. It seems to get worse the longer I use it.

Everything is painfully slow, sometimes it takes over a minute to 

click on the next photo. I have optimized everything possible, and it gets worse the longer I use it.

Lightroom Classic has been running so slowly that I can't use it. This seems to have occurred since my last update. What can I do to fix this problem?

• Desktop Intel Core i7 2600 @ 3.40 GHz (older generation)
• 8 GB Dual-channel DDR3 @ 665 MHz (old, slow tech)
• Windows 10 Pro 64-bit (20H2 OS Build 1942.572)
• 124 GB internal SSD (OS, apps, LR Cat)
• Multiple external HDD's (JPEG, RAW, Video, General, ...)
• Lightroom Classic 10.0 Release Camera Raw 13.0 (Build 202010011851-xxxxxxxx)

In ten years, I've never had so many issues with a version before!

Background: I just bought a brand new Macbook pro in May of this year, and everything on it is up to date.

Bugs that I have encountered so far with version 10 of LR classic:

 - Not compatible with my laptop's graphic processor (because that makes sense) so Adobe support made me turn off the graphics use in LR. It was causing 'ghosting' - the sharpening functioning from the previous image would be applied to the new image.

Now LR runs slower than molasses. On my new laptop. With no other programs running. And allowing as much memory use as possible. It worked better on my 12 year old imac, seriously.

- Can't move images from one collection to another within LR UNLESS all collections are ordered according to capture time. Because that makes sense.

(I will be adding to this list as new bugs rear their heads, I'm sure).

My question is - how do I get Adobe's attention to make them take these issues seriously? Their help pages are ridiculous and incredibly frustrating.

@Rikk

Hello Rikk, I have the same super slowness issue with an MacPro 2019 + Radeon Pro 580X_8GB and the Apple XDR 6k Display. If I use my DELL Monitor 34-Zoll (3440 x 1440) it's incredible fast. 
Then I tried resXtreme to lower the resolution on the XDR-Display just to FullHD, there is no change in performance. 
Only when I switch to the Apple color profile "Internet & Web (sRGB) and the full 6k resolution, the performance "normal-slow" is back (like before the LR10 update).
Please resolve this issue soon. If needed you can contact me.
Thank you in advance.

Regards
Ronald

Hi

Mac Pro mid-2010
2 CPU, 12 cores 3.46 GHz
96 Go RAM
Radeon RX580 8 Go

Professional usage as a photographer.

Slowness is unacceptable.


Asking professional photographers to change their Monitor Profile is just a joke. Do you know at Adobe that professional people make calibrations for their screens?

Nevertheless, I just tried to change the screen profile: absolutely non change in the slowness.

I will go back to previous version.

I am officially asking for, at least, a one month refund.

And one month refund is far for the time I have lost with 0 QA software where non regression tests when updating versions seem to be a non existing concept at Adobe's. 

Regards
Thierry

Have you tried the "monitor profile" fix? Change from any custom monitor color profile you've created to a "default" one, like Adobe RGB, Apple RGB, Generic RGB profile. This seems to clear the slowness. Adobe is working on a fix. System Prefs/Display/Color and pick one.

You could also try the "once over" to delete more caches and application states, it may not help but it can't hurt (and you'll gain hard drive space). Download the free Onyx (https://www.titanium-software.fr/en/onyx.html), select the Onyx version for your OS, download, run it, reboot.

In Onyx run almost everything in the Maintenance tab, deselecting things you may not want deleted, like Launch Services. Hit the "Options" button across from "Internet" and check/deselect more stuff like Cookies & Other Site Data, Browser History, Form Values, (which are OFF by default), but make any other choices you want to keep. Don’t know what something is? Google it, or ask me, or don’t run it, then hit Run Tasks. After it's done it will ask for a reboot. You will see you've gained some hard drive space, but try to use it again.