i have windows 7 5 years old graphic card and 5 year old amd athlon processor.. there shouldnt be any problems .. i have ati 1650hd as my GPU .... its really strange

I do not understand why is my game so choppy... everytime i move my character i have like 2 fps....also every action takes 10 min to complete..If i try to change from windowed to fullscreen i have to wait ten minutes...its like my computer time trav…