P: Slow UI when using Mac and Custom Display Profile

Yes I know that this works but this makes no sense on a 6k XDR display.

A very wise and sound advice, thank you for sharing! (although as an independent professional I know that, but this may not be the case for everyone). 

About the IT department, I'll get one starting tomorrow. Just tell me please which address they should send their invoices to so they get paid quickly 😉

Here's what's going to ACTUALLY work for everyone:

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. I'm still on Catalina, I NEVER upgrade until the ".2" version, giving Apple time to squash the usual bugs.

Also: did you ever see a corporate computer user without an IT Department (onsite or off)? You are your own corporation, 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!

"(between bad OS and bad Adobe updates it's getting tricky to work...)"

Absolutely, 38flou, the problem is that they are all seized with the fever of the "always new" and take us for beta testers by bringing unfinished products and software to market at an ever faster pace. They should understand that this is ultimately detrimental to them because it makes buyers reluctant to renew. It's up to manufacturers to adapt to the needs of professional market, not the other way around (while creating unnecessary needs is the hallmark of consumer marketing). Professionals need robust solutions, not non-functional gadgets.

It is a bug, there's no question about that.

I agree Rikk is not to blame (to the contrary, he is of great help), but I disagree on the fact that we have the wrong expectations here. This is not caused by old hardware: there are people affected by this even on a 2019 Mac Pro or a 2020 iMac, we all satisfy Adobe system requirements, and the fact that the issue disappears by just changing the monitor color profile clearly points to a bug in my opinion...

While it's loyal of you to act as unpaid apologist for Adobe, it's getting pretty tedious and irritating for other Mac users. You have already been slapped down more than once for touting elitist nonsense about Lightroom needing 'superior hardware'. Well here's news for you, millions of users don't have the latest manufacturer's gear - they upgrade existing gear, in many cases to levels of performance that equal or exceed new, off-the-shelf Macs. 

There's a lot of software out there which is both CPU and/or GPU hungry and those millions of Mac users are not experiencing this kind of fiasco.

Get down off your high horse and join the rest of us in the real world.

Lightroom, for all its strengths, was a poorly designed software from its inception with multiple bugs, slowdowns and crashes with every iteration. Whenever its snail-like performance was improved, it was touted as a major triumph whereas it was no more than a return to barely acceptable performance compared to its competitors.

And now two months in, after Adobe has admitted it's a software problem you are still banging on about 'inferior hardware'. Give it a break.

Joshua, 

So you expect an upgrade with more features and performance to run on the same old hardware? If you are going to use V9 level hardware then use V9.

Adobe's failure (common in the software industry though that doesn't excuse it) is to be forthright about Lightroom's hardware requirements. The marketing reps only want to sell more licenses, that's how they are paid. So they are not going to kill sales with realistic hardware requirements. 

Lightroom has an order of magnitude more capability than any other image editing product. A person might like Capture One or DxO or any of the others but why don't they switch en-mass? Features.

V10 / V10.1 was a big performance upgrade. Those who buy non-upgradable machines like laptops and all-in-ones pay the price of needing new gear or running older software.

Adobe's failure is a lack of forthright communication. V10 should not have been released for the Mac. 

Yes the Mac platform has also been hit with some significant problems but that's also understandable to anyone who has worked in product development, software or hardware. The first team is focused on Apple's new architecture, their best people are working to get native versions of their software working. This is the way that all development organizations work. 

And don't beat up Rikk, he's caught in the middle; trying to be helpful without getting fired. 

@2126481,

Seriously—it's been over two months since you first posted your advice to simply downgrade to 9.4.

Isn't it embarrassing to still be directing people to that "workaround"?

Isn't it embarrassing that Adobe released such an incredibly flawed "upgrade" in the first place?

Instead of directing people to months-old advice, why aren't you here giving updates on adobe's progress?

Is it because there isn't any?

why aren't you giving refunds at this point?  if you went to a restaurant and they kept screwing up your order, at some point you'd expect them to offer you something at least as a gesture.  

(Not that saving $10 a month would make the situation any more palatable, but at least would be a symbolic gesture by adobe that they are sorry for causing their customers so much trouble.)

Or maybe this is adobe's way of saying that LR Classic is on its way out, because fixing the problem obviously doesn't seem like much of a company priority at this point.

Just like a few years ago when adobe promised they really weren't about to eliminate standalone software and force people into subscriptions.