You could try disableing hyperthreading / allocating the game only to physical cores (for that open taks manager, go to details, right click the game and click on processor affinity. have only even numbers active [0/2/4/6/8]).now i remember why i stopped playing this constant freezing is annoying on a i7 for those who r pondering
BTW this helps with alot of stuttering issues especially in Unity games