PQ is fine. These are indeed cheap boxes. I have noticed in 3 boxes that there is a serious blank screen issues. Take 5 seconds to flip channels. And services channels locks IR inputs for 10-15 seconds.
How come? Don't your tv have picture setting?
It should be 1080i. Little better than 720p. There is no 1080p channels in India. Which channels are giving you for bad PQ bro?