Demon Souls runs in fast motion

The blog post you linked say the instructions there don't apply, you need to use the patch in Game Patches inside the emulator and follow the notes it has.

Either way, forget proper 60 FPS with that CPU, you'll get performance issues even at 30 FPS.

Thanks for answering.  Ok.... so.... the problem is with my microprocessor? Is too old? or the frecuency is too low? or what?