I changed the Water to medium. Still 60 FPS constant.
I really like these settings. A little bit to blurry for my taste but very playable. With MSAA x2 I get also 60 FPS, but Framerate feels a little bit less smooth, so I keep it off.
(As soon as I change Supersample rate or Pixel density i encounter dips to 55 FPS, so I leave them at default for now.)