CPU Bottlenecking Mabye?

[The Yodelling Pickle]

Hello, I think my pc may be bottlenecking itself when I try to play some pretty high end games.
As in, It can get a pretty decent 40-50 fps on the new Battlefield 1 Open Beta, But then it can randomly drop to 5-15. I have a AMD Phenom II X6 1055T and a Geforce GTX 650. I was playing on the lowest settings from what i saw.

 

[Faux_Grey]

It's just the beta, everyone's having some issues.

 

[Low Profile Gamer]

I've also seen i5s being the cause of bottleneck in that game