Default Neo X7 Mini Help

I'm trying to watch HD content through my new X7Mini and it just does not look right. (I'm using Plex) I had the same issue with my Nexus 10 hooked up through HDMI, the video just seems off, not exactly flickery, or laggy or anything, it's hard to explain. It just does not look like when I was using the Plex app for Samsung TV.

Does anyone know what I am talking about. It's set to 1920x1080@30 (@60 seemed worse). Also, seems like sound is a bit off at times, not badly, but a bit. And I have never experienced this with Plex before.