https://bugs.winehq.org/show_bug.cgi?id=55706
--- Comment #4 from triguy tri.voxel@gmail.com --- By the way, for anyone else experiencing this issue, a workaround might be to disable "ultrasmooth animations" in FL Studio's "General" settings tab. In my case, as soon as I disabled this, my CPU usage dropped by ~10%, and menus no longer freeze the app, or even slow down for that matter. I also don't need the aforementioned "WINEDEBUG=+relay" option. Just make sure to disable the ultrasmooth animations and that may be all you need.