i take setup from setupgrid site and adjust height ride to max. but problem occurs, my cars start jumping in corners. what i need to do with suspensions to prevent this behaviour?

Why do you raise the ride height in the first place? It raises the centre of gravity and unless you bottom-out, it is quite useless imo. Just lower the suspension again.

Or if your car is bouncing in the corners, try to reduce some damping of the dampers.