ExtremeDude2 Wrote: ^^ This is what I use to do
Out of curiosity, I just tried it on a more than terrible GPU (GMAX3100 IGP) on my laptop with Sonic Adventure 2: Battle. Dunno if Dolphin's OpenGL backend has a 0.5x option or not, but it wasn't there when I looked. I just set the IR to Window Size and resized the window to something smaller at my best guess.
Anyway, normally I can't get 1x on my laptop to get anything above 23~25 FPS. Setting it lower, I actually reached 32 in a lot of places. Didn't help too much with wide open spaces, but other areas were all about half-speed, which is playable in my book. So yeah, IRs less than 1x can be helpful.
