Get rid of them, especially if you have a 600 series or newer. The Geforce forum is full of people who are getting BSOD's, and other issues, like the GPU loading to 100% and turning the fan down so their cards get up to over 110C. https://forums.geforce.com/default/...play-driver-feedback-thread-released-1-7-14-/ I personally got a BSOD, then my transparency in Windows disappeared, looked at my temperature monitor, and it instantly started climbing worse than any power virus I've ever seen. Basically, if you have these drivers, get rid of them NOW, before they fry your system. Rolling back my drivers to 314.22 also fixed A LOT of the issues in PS2. I would highly recommend people try these drivers, and see if they fix your PS2 issues. I know they're ancient, and don't support Shadowplay, but they actually WORK. http://www.geforce.com/drivers/results/68799 314.22 drivers
327.23 continues to work gloriously for me. 332.21 worked hilariously/frustratingly poorly. 314.22 is however a great and extremely stable driver in my experience, so if 327.23 doesn't do the trick I would second that suggestion to go all the way back.