I have a brand new. I have a brand new GE Profile Dishwasher model PDW9280N20SS . I clean most of

Question

I have a brand new GE Profile Dishwasher model PDW9280N20SS . I clean most of the food off and lightly scrub the dishes. But any left on food is generally still there after the wash cycle. In addition, there is a light coating of some sort. I use Cascade and jet dry but am not very happy with the results thus far. Any thoughts??