@venkmon, almost the same as my machine.
I observed that some installations of other programms can disturb Cubase. Then I observed that Cubase wworks different after updates. I suppose that you can get better performance if you reinstall whole system and don’t install any other programs after Cubase (except Steinberg products). I mean keep you machine clear as possible.
P.S. If you drive a car, you drive only a car and cannot take off in space; when you’ll “drive” a space ship, you won’t land on a street (I hope) 