Well, for the heck of it, list your specs anyways, we might discover something that could help.
List plugin configuration, versions of the plugins, and emu version, along with emu options enabled, we need ALL this information, not a brief over-view.
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PC configuration
Q6600 @ 3.4GHZ Stable,GeForce 8800 GT 512 MB GDDR3(Super-clocked) ,4GB PC8000(1000MHZ) RAM @ 950MHZ(5-5-5-15)(Waiting to tweak them eventually),Windows XP SP2 Professional(Vista 64 bit, Dual Boot),750GB 7200 RPM, 32 MB Cache Hard-drive(SATAII),24'' LCD( I know, sorry CRT'ers) HD 1080pi, DVI connected, 1920 x 1200 @ 60HZ),P35-DS3L Revision 2.0 @ 1.49V
http://tinyurl.com/2zzzsr
Use the Guide above to get PCSX2 to run properly. Has all you need to know to run PCSX2.
Having trouble with a game? Check here:
http://tinyurl.com/2cuzhx