

It’s also butt-ugly of course, in particular the font rendering. In other words, Lightroom only has to shovel around a quarter of the data – and guess what? It’s really, really fast then. My iMac’s resolution is 5120 x 2880 pixels (“5K”) and this switch reduces it to 2560 x 1440 pixels, for Lightroom alone.
#Lightroom classic 2021 mac mac os
So instead of messing around with the color profiles, I switched Lightroom to the “Low Resolution” mode that is available on Mac OS for Retina displays. If it wasn’t for the annoying “stuttering” performance in the Library module, it would be quite nice to work with. After I saw LR 10’s very smooth performance on a color-managed, but standard (“HD”) resolution display, I began to wonder if I’m affected by this “color-managed performance bug”, at all – Lightroom Classic 10.1 actually appears to run quite fast on my machine, notably faster in the Develop module in particular. I don’t even have room on my desk for a second monitor.Īlso, my problem is that I’m seeing no change in the Library module’s sluggish and “stuttering” performance (in particular when scrolling the thumbnail grid), no matter if I’m using sRGB, or my custom profile. One workaround is available to those of us who use two monitors: open Lightroom’s Library module on a monitor that uses a standard profile, and do the editing in the Develop module on the properly calibrated display. The thread in Adobe’s help forums now contains pages upon pages of comments and replies from affected users, including Mac OS/Windows flame wars, people accusing each other of not knowing what they’re talking about, and everything else that a good internet forum post that runs for a while is expected to have. And it does NOT contain a fix for this bug*.

Now Lightroom Classic version 10.1 has been released. Except that this is utterly useless for editing photos, of course. When those users switch their display profile to sRGB, the UI instantly becomes fast and responsive. The worst one affects some Mac OS users, who saw incredibly poor performance, in particular in the Library module.Īs it turned out, that performance hit only occurs in a color managed environment – in other words, when you have a calibrated screen and use a custom display profile (that would be most photographers, I’d say). In my review of Lightroom 10’s new features I concluded that it was perhaps put together in a haste to be ready for the Adobe Max conference release date, and that some problematic bugs remained. UPDATE: Lightroom Classic v10.2, released in mid March 2021, finally fixes the worst performance issues in the Library module on MacOS for me.
