Dude running it on plain roads or the streets makes no difference. This bike may have a few minor problems here and there but the engine is probably one of the best things that you can get in the indian market. The performance has always been mind blowing. Ive had mine for over a year now and she surprises me everytime with that sheer brute force and torque.
So its probably bad tuning or old oil or slack chain or low tire pressure or probably all of them !
so just look into all these things before concluding that "it has a major problem" .. Even stunts take time to have an effect on your engine ... Just a few stunts here and there are not going to do any damage ...