When I run SNES9x emulator in fullscreen I get seriously bad FPS. If I run windowed mode it's perfect, and it runs fine before when I had Windows 7 on.
I've updated my drivers from the Nvidia site which had a Windows 8 driver for me. That didn't help. I've tried editing the config file to make sure I'm using 32 bit depth and refresh, and that didn't help.
I've tried Project 64 and it works fine in both windowed and fullscreen mode.
What else can I do?