Problem with the link in your sig is that a lot of those emulators don't come with readme files, so it's not very clear as to which system they actually emulate.
Most SNES games run at full speed with it without tweaking.
theres even a newer release now than the one you posted
Snes9xTYLsmcm-23-05-08
Theres now
Snes9xTYLsmcm-27-05-08 Test
Basicly fixes the bugs in the previous version, and is even slightly faster Snes9xTYLsmcm270508
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