I've been hampering on this one for quite a long time, now! Link swims like crap! To be more specific, he gets hung up on corners:
This is only on the top-left corner when you hold in the down and left arrow keys and on the bottom-left corner when you hold in the up and left arrow keys.
Also, is it me or does Link control/behave/look/feel different(ly) in water? I don't know how to explain it... He just doesn't seem to act the same as he did in 2.10.