Hello guys, my system specifications are 4gb ddr2 ram, core 2 duo e7500 processor 2.93 ghz, 500 gb ssd, nvidia geforce gt 710 gddr3 2gb. I currently have windows 7 ultimate 64 bit version. I have heard that windows 8.1 is lighter than 7. First of all, my priority is playing games (don't laugh at me as everyone cannot get high end pc) so considering that, should i upgrade to windows 8.1 or not, will it have any negative impact on fps?