Hi,
Look here:
http://www.youtube.com/watch?v=tKwE669LIT8
The first App is a ST1 app with advanced tpl's with buttons, images ect.
It has no problems at all with following my finger smoothly.

The next application is the plain list from the Kitchen Sink ST2 look how bad it is from 0:34.
Lag builds up and it is very hard to use lists on Android 4 with ST2 because its only smooth if you scroll fast. If the tpl is more complex (like the first app, its much worse).

So there must be something you guys can do when you have a better performing list in ST1 than ST2. (When talking Android 4)