Originally Posted by AarSyl
Keep in mind that the Nexus 5 is a different processor. The N5 has a Snapdragon 800 while the N7.2 has a Snapdragon 600.
But aside from that...the tab is moving just fine.
The CPU difference should not to be seen from the video as it is only showing the UI and app opening experiences. During those times, mostly either the CPU is jumping what's most close higher to 800MHz or GPU is kicking one step up. Either way, running some UI elements or opening app animations on 60 FPS is not forcing neither of the Socs to their max frequencies (I am talking about Snapdragon S600 and S800).
I have watched the video very carefully under different resolutions to make sure of the snappiness. The only part that seems like under 30 FPS is where "app drawer" is called. But that's only because it's a bad animation trick. The best way to make sure the UI is running at (or above) 60FPS is to see how "recent apps" are fading away when "clear recents" button is pressed or scroll up and down thgouth mails (SMSs if it's a phone).
And also enabling "force GPU rendering" and "sdisable hardware overlays" options under develper options will certainly help.