Thanks but the wave calmness is just my 2nd problem 
With infinite component ON, the lake “floods” my entire landscape, I would like small lakes on certain locations. (an area what a plane cuts to landscape). My landscape is mixed from various ones, and I have a desert lowland, which is completely filled with ocean with infinite component.
But seems the correct waves requires infinite component tick where it rescales and relocates the plane.
Why I dont use another asset for lake? Simply, because its the best, plus I didnt find similar properly working solution for buoyancy for objects more than a sphere or box.