I hear ya... its killing me. I'm trying to edit shoots at the moment and its slowing me down terrible. I'm on Mac and I've tried everything...
Adobe please fix this asap!!!!
I'm going to +1 on this. It's bad. Like, the worst it's ever been — and that's not hyperbole.
I've been using Lightroom since right before 2.0 was released (a decade?) and I've always had adequate performance at the very least. Sometimes speedier than others, but never unusable, and nothing an update didn't fix.
This last update broke it. Bad. I have to restart the app to get 30-60 minutes of use out of it, but then it immediately begins to just hang on every mouse input. Constantly. And nothing but a restart fixes it before it just does it again.
Oh my goodness! I'm not the only one! But... Oh, no, I'm not the only one... I, too, have tried all the regular troubleshooting solutions to try to fix the problem. I thought it was my PC, but no. It's Lightroom CC Classic. It makes me want to pull my hair out! What normally would take me 2-3 days to edit an entire shoot has now taken me almost two weeks! Thankfully, my client is forgiving. My future clients, however...? They might not be so forgiving. This is excruciating. One photo now takes me more than 10 minutes to edit because I'll be waiting for adjustment brush tool to make changes or the healing brush tool... Beyond ridiculous! Do something Adobe!
You don't say anything about your system.
Which operating system do you use?
Which hardware is build in your PC?
Is you system up-to-date, esp. the graphic driver?
Do you use the latest version of Lightroom?
Do you have tried to deactivate the GPU support?
Do you have tried a clean reinstallation of Lightroom?
I worked with Lightroom Classic CC on an older hardware (Intel i7-2600K, 16GB RAM, Quadro K2000 ). Catalog and preview cache are stored on a seperate SSD. My catalog contains approx. 85K pictures.
I don't have any problems that you described. So I think something wrong in your configuration or it is a incompatibility with your system