I just installed an Infocus 4805 and a 92” Da-Lite High Contrast Cinema Vision Cinema Contour. The problem is When I first got the projector I set it up and shot it against a grey wall, the picture was awesome and could not wait to get the screen up. Well I got the screen up and now I’m not as happy. I can see the grain or something from the screen only in the white areas is it really bad The image and colors look great just the whites do not make me happy. Did I get the wrong screen for a completely light controlled room. Or is this something I can reduce the white level.