I purchased Duet Display to use my iPad Pro 12.9 as a second screen with my iMac 5K late 2015. I am finding that the screen is blurry on the iPad, and text is pixelated. It is set to "iPad Pro Resolution". I read reviews that the screen was cristal clear. Can anyone offer advise? --- Post Merged, Feb 13, 2017 --- Here is a picture of the display.