On some roms, the transition animations are fine, but window animations bug. They dont fade. The zoom out, but dont fade. Its horriffic. I experienced that on NexusHD2 ROMs.
On others, windows animations are fine, but transitions lag horribly. Unusable.
Whats the catch? Lib? HWA? Bad blcks? Framework codes?
The only rom where everything is smooth is Evervolv (4.2.2). But it had bugs, so unusable.
On 2.x roms everything is silky smooth.