I think this best sums up what I am talking about, and it seems to happen even when I do not drag a note outside of the piano roll workspace.
Essentially, in the piano roll in Logic X, you can scroll horizontally through the loops of a midi region. Versus in logic 9, the piano roll was confined to the initial loop of the midi region, and you could not scroll horizontally through the loops. So in logic X, zooming on the initial loop is more difficult and the autoscroll is much more sensitive because the space the piano roll covers is much more broad. Is there a way to make it more like logic 9?