A few days ago my Alienware 18 began getting 200 fps or lower on cs:go when i could normally get over 300. I now have to run all settings on low to play H1z1, LoL etc. I already talked to a technician online and he said all my hardware was working normally and to factory restore my pc. I did this but it has not solved the problem. My GPUs are 2 Radeon R9 M290x in Crossfirex. I have 16GB of ram and my processor is an i7-4810MQ at 2.8ghz. Any suggestions would be greatly appreciated.