.2k13 sudden lag

title says it all. after playing for a week or two, the game just suddenly lag. first week fps was about 30, then suddenly i played the game today, fps drop to 22. wth happened:?

Impossible to say without knowing more about the situation. Have you installed anything new on your PC in the past week? Are you using any mods? Did you change any settings? Is anything else on your PC experiencing issues? If you can tell us a little more about your PC and any factors like that, we might be able to point you in the right direction.

.andrew thanks for the reply. luckily i've managed to do something about it. Yeah i used a mod, called x360ce, the one that emulates x360 controller. ive set up 2 controllers the first time, and it work fine. but when i disconnect one of the controller and play on my own, the game lags. so x360 is the problem. anyway thanks, im gonna post something again though.