buggy Mama do not cry (Need for Speed: Rivals)

All good afternoon(evening,lunch,night). Start with TGO that when the game came out I could not play it due to the fact that it is much lag(thinking that the computer. weak. Now I have a computer ай5 видео2гб memory 8GB but it again, it seems buggy after training for the cops and drove after leaving the city it starts to lag terribly dcml lower graphic settings did not help dcml case Repack downloaded drchau did not help .
What to do help!!!
P. S. sorry for the mistakes.