Once changes are made in preferences PS needs to be closed and restarted for them to take effect, did you follow that procedure?Neither purging the cache nor turning off the GPU solved the problem.
Once changes are made in preferences PS needs to be closed and restarted for them to take effect, did you follow that procedure?
I had made an assumption you would have trashed preferences and restarted PS. Have you done this?
Press and hold Alt+Control+Shift (Windows) as you start PS. At the prompt choose delete the current settings. Next time PS started a new preference file will be created
Have you checked that you have the latest graphics driver for your GPU or considered the possibility of a corrupted driver and taken action to uninstall, reboot and install again?
With all that checked and confirmed it may well be indicative of either stopping doing clean up in ACR and after raw basics completed go to PS to clean up etc. or looking to upgrade your card. Adobe recommendation minimum is that most cards manufactured after 2014 with 2GB RAM should work
It is not possible to trash your preference file without losing your current settings. Just make a note of them, I cannot imagine that you will have changed too much or just use until you see that something is not how you like then alter again......
Is there a way to make this happen without losing my current settings and having to manually recreate them?
OK, but I did touch on replacing your driver in post #24 or if you had done recently then consider a roll back to previousNo, I haven't done any of that for reasons explained earlier you probably missed. I'm going to download a new driver per Richard's explanation. See my previous post.