My W10 pro 64 bit PC specs are as follows,CPU AMD FX6350 6 cores @4.5,RAM 16 Gbs @1600,GPU is ASUS GTX970 STRIX.I play this game on ultra settings and it's butter smooth,no stutters,no tearing @70 FPS average.Because the game runs so good for me and so many others,it's very unlikely that CM will be of any assistance in correcting this issue for those of you with this issue.If the issue lies within the game itself then it would effect everyone.But it doesn't.It seems to me you either need a fresh install of 64 bit windows,32 bit just won't do the job due to RAM usage limitations or your system just can't handle it at the higher settings.I feel sorry for those of you who can't get it to run right because this game is lots of fun.