Default 3D on N7000, Asylum Omni 4.4.2

Hello,
I'm using Asylum Omni 4.4.2 rom, daily upgraded with last rel, but I notice bad 3D performance with games (my preferred GolfStar for example), low video quality, aliasing and so on.

Is there any setup I don't know?

Which rom, or bettere, which android rel has the best video driver for N7000?
Are stock (android 4.1.2) better then any other?

Sent from my GT-N7000 using xda app-developers app

Galaxy Note N7000
[KitKat][4.4.2][Omni]Team Asylum Omni 4.4.2 Naughties™: Slim, Fast and Black Rum™
thanks to chasmodo