Why is my D2G so slow running emulators?

This is supposed to be the fastest droid, right?


My PSX4DROID emulator running FF7 has choppy sound and any fights with more than one bad guy make it slow.

Even my SUPER NINTENDO emulator slows it down some time when playing street fighter 2 or something. I've seen people on Youtube running these more smoothly with worse phones.

What gives? And yes, I've killed background apps/tasks.