Let’s say I’m moving my mouse from some instrument panel (e.g. “Exposure compensation”) to another one, or to select another image. Instead of having a smooth and easy movement of the mouse cursor, it “freezes” in place and after some pause (0.5-1s typically) starts moving again. It happens so often that it’s very annoying and increasingly makes working in PhotoLab a pain. It only happens in PL, no other application on my PC has this problem.
Also, switching between images in Correction mode is slow, at least 1-2s delay for redrawing the image. But that’s less irritating for me.