How do I make games run faster with Pcsx or Epsxe?

You know when you push the + button on No$gba it speeds up the game?I want to recreate it for Pcsxe because the battles in Digimon World 2 are so slow.

i'm not aware that epsxe has that feature.

Replying to #2

i have tried it ePSXe has the speeding feature.follow these steps :
Tutorialviola you have got speed !!!

A Beefier computer would also help...