Miui v5 4.2.2?


honestly, nothing, my m2 faster even though this was on 3.3.29,
but heard qa 4.2 or the jelly bean had some new features to GPUs as adreno 320.
 
Not that I have extensively researched any other way to do it on my MI2, though I have tried a few things, but I would like Miracast that is included in 4.2. Wifi Display doesn't seem to be working with my Samsung TV (ES8005) while Miracast supposedly does (even if Miracast only is a certification based on the Wifi Display spec if I understand correctly).
Or if you have any tips on getting this functionality on the current rom I would greatly appreciate it. Running 3.3.29 now, have there been changes in any of the later releases regarding Wifi Display that I have missed while scrolling changelogs?