Seemingly Random Slowdown on Some Games

[enemydomestic]

While overall this is probably one of the better performing PSX emulators I have used I have some problems with some games Xenogears in particular with random lagging where everything will go full speed and fine one moment then completely lag up the next couple minutes then speed back to normal. This doesn't seem to be related to anything particular happening in the game but the lag it causes becomes really annoying after awhile. I was wondering if anyone knew what I was talking about or how to fix it. I did a rip from my brand new Xenogears cd's so I doubt it's a problem with it being a bad rip.

System Specs:
2.2ghz Celeron Processor
512MB of ram
and a 64mb SIS 650M
Windows XP with SP2 and all latest patches.

[pSX Author]

Try running in full screen mode, or turning off frame skipping.

[enemydomestic]

I've tried that and it doesn't seem to work either.

(Also, wanted to chime in and say thanks for the work you have done on the emulator so far it's truly awesome.)