Asus Nexus 7 slooooow

I'm trying simple animations on an Asus Nexus 7, slides left to right or form top to bottom and performance if far from acceptable for a device with such specifications.

Something like:

var container = Titanium.UI.createView({
    width:280, height:150, top:20,
    backgroundColor:'#7c6c59',
});
self.add(container);
 
container.animate({ top:200, duration:400 });

Can't be the code because same app on a Samsun Express (like S3) works very well (as expected) and animations are smooth as butter. So it must be something on the device.

Anyone using animations on the Asus Nexus ? Any ideas??

The only way I have Asus Nexus 7 to have those smooth animation we're looking for, is to force 2D acceleration under developer settings, but this is not the solution.