The rate of wave movement depends on movement

Noticed this on current stable version in Rift VR also visible on the screen.

Jump in a helicopter (Maybe Harrier even) and land by by the sea and observe the wave rate it looks reasonably natural with slow moving wave crests.

Pick up and hover same deal, but move relative to the water in any direction and the wave rate increases a lot and looks like it's blowing a gale and somewhat unnatural.

I'll just put that with those slinky shadows, the ones that slink into place as you approach objects. :P :D