5-10 fps on A.V.A

[Striker99]

Something happened to A.V.A where it just gets really low fps for no reason. Its not my computer cause I run games that require much more than this game fine.
I turned down all the graphics and i still lag the same as if i had them on high or medium.
I am able to run this game on my laptop with integrated Intel graphics at around 70fps.
This is the only game that does this. It may have something to do with my antivirus? I played the game fine before got the antivirus (I think). It's Bitdefender btw.

Please help.

[Battlefield 3]

Clean your pc too much dust in there
I'm gonna clean my pc tomorrow

[Infernox~]

Yeap,clean you're fan etc,those things affect PC performance too.
(You should clean you're PC atleast once a month.

[Cal]

Turn of anti-virus?

[Addict Gamer]

You also should check your graphic card and internet connection.