But not at all with PSX, ScummVM, or Sega CD games (hint, hint, poster above me, Sega CD needs bios files correctly named in the correct folder. Please use google (libreto picodrive sega cd), dont ask) need threaded Video to be enabled - for them to not stutter.
threaded video on shouldnt be a "bad" setting, except for when a certain core cant handle it (might even be switch specific behavior).
So threaded video is either "mostly excellent", or "mostly bad", depending on the core you are using - apparently.
Just dont want the "mostly bad" "feel" to stick in peoples minds.
Otherwise they never will get close to full speed PSX emulation..