ive heard that Sne9xTYLsmcm is better than Snes9xTYL 0.4.2 but i havenyt tried it, and i have no real problems with Snes9xTYL 0.4.2, so try both and see what you think.
The emulator works pretty fast but the sound effects(like mushroom power ups or other things) sound messed up. I guess it just comes with newer updates and fixes?
uo SNES TYL 0.42 ME++ ver 32, the one i use runs everything properly with speedhacks inbuilt, well in a file lol, pre made for most games. But it requires a FAT psp with 1.50 kernal addon