Super Smash Brothers Melee...Slow

[blackjab24]

IM having problems getting full speed at SSBM. Sometimes the game says its at 60fps but the game plays slow. ANd I cant keep it at a constant full speed.

Im using the SVN R2745, the IL.

Dual Core on
Idle Skipping on
Native Resolution
EFB copy diasbled


Here's my rig.

x64 Vista|Intel Core 2 Duo T9300 2.5GHz||Nvidia Quadro FX570M|2GB PC2-5400 667Mhz