I am working on a bowling program. My problem is that the bowling pins are behaving extraordinary. Pins are falling down slowly. Initially it was very slow. Once I modified the damping value to minimum, it became better. But still it is far below the natural behaviour of a pin falling down. Also the ball is bouncing after it hit the wall like a rubber ball. If anyone know any solution, kindly reply to me, because this is spoiling my whole program

You need to provide more information as to how you are setting up your physics objects. Check phent_setelasticity ( entity, var bounciness, var minimumSpeed ) in regards to the ball bouncing.

Jason