The only other thing Iv installed is Anti-virus and I've tried that too :/ Maybe its just bad drivers? Im not sure though :/
anti virus could well be messing your installation
Are we too assume you've had this running properly without this issue before?
Your FPS might me 60 because you have vsync enabled.
Is your internet sky llu or sky connect? if it's not llu then you will get shaped heavily at peak time as their non llu service is rubbish. And as you say they slow you down after torrents then I would say you are on the connect service as their llu service is unlimited.
I doubt you will be able to do much about it apart from moving ISP.
How does the game actually play?
If its alright ignore FPS, its irrelevant really
Did you run chkdsk or the like on HDD?