I can definitely confirm slowness on Windows. On MacOS it isn’t much of a problem, but at least once a day, sometimes more, I have to restart Xojo because clicking pretty much anything in the IDE, whether it’s a control in a Window or a method, can take anywhere from 5-10 seconds to actually select. It gets worse the more you use it. Keep in mind, this is on a brand new i9-14900k PC with 192gb of ram.
But on MacOS I can run the IDE for weeks at a time without a restart and be fine.