Problems with my MAME Emulator

[FmlyGy]

My MAME emulator "jitters",like it freezes sometimes,and i can't stand and it gets a bit slow:mad:

[Spellsong]

Whats your CPU and how much ram you have?

[Epsi]

Also what version of Mame are you useing?

[FatTrucker]

And what games are you trying to run.