I need damn help

Hi guys,

In the first time when i play et my fps is good then after 10 / 20 minutes it start dropping

In some maps even 15 like in goldrush @ bank opening

its really unpossible to play

First i had 76 Fps stable almost every map maybe some drops in radar.. But now it drops everywhere

It just drop for 10/20 seconds then it goes back to normal fps (thats 76)

So it just happening for some seconds ..

I think maybe it has something 2 do with pnkbstra and b shit..

I already tryed to give et a higher priority but that dont help.. So i need something else to solve the problem. When i uninstall this punkbustea or stop it i just got a error of Pnkbstra.exe failed when i start ET and join a server..

HELPPPP thanks :D..