Telling your computer specs would help a bit.
I had the same problem, but when I updated drivers it worked well till I entered the game itself.
Still it was unplayable cause of constant freezing. I'm sick of trying to fix it with driver installs and doing configs and whatnot,
it really shouldnt be my job cause game should be working when it's released. F*** this.
Anyway for this case, try upgrading your drivers.
Tho if you have E series CPU you probably will have the freezing in game itself:(