What game? PCSX2 settings? Plugin settings?
Try updating your card drivers or using older ones, also if you have any overclocking try setting the card to stock clocks or even underclocking a bit. Unfortunately being a display driver problem it's not really easy to identify.
Core i5 3570k -- Geforce GTX 670 -- Windows 7 x64
Try Updating/Disabling the Catalyst Driver.
How to disable Catalyst driver?
Intel Core 2 Quad Q9400 | nVidia GeForce GTX 750 | 4 GiB DDR3 @ 533 Mhz | MSI G41M-P28 | Cooler Master RS-390-PMSR-A3 | Xigmatek TYR SD962 | LG Flatron W1943SE | HP KB-0316 | MotoSpeed F60
Well, Either remove it from StartUp Services or don't install the Catalyst Control Center. It sometimes causes bugs. I removed my control center for ATI Radeon HD 4650, and installed Driver from Windows Update. Now PCSX2 works fine and Photoshops OpenGL error(Photoshop couldn't detect OpenGL 2.0 and up when Catalyst Driver was installed) is also resolved.
Try to update directx or if that gpu overclock then set to default clock.
Notebook ASUS A43TA|CPU AMD Llano APU A6-3400m Triple core (1 core disable) OC to 2.6+Ghz|GPU CF|HD 6520 400Mhz/667Mhz iGPU|HD6650M OC 780Mhz/985Mhz dGPU|RAM 8GB DDR3 1333|Windows 7 Ultimate Sp.1 x64 bit.
>> Emulation speed differs for each game. There will be some you can run fast easily, but others will simply require more powerfull hardware <<.