I'm having similar issues with my G75-VW....I got it at the beginning of this year, not for gaming but rather development, running ubuntu inside of a VMware workstation with all other kinds of tasks going on in the host and guest OS...and lots of lag. It shouldn't be running as slow as it has been considering the specs, so I will go with your guys' suggestions, updating the GFX card drivers and the bios if possible before trying to overclock this badboy. Appreciate the support and I hope nobody minds me posting in this thread with the same issues as the OP, I figured it'd be better not to open a new one