Hi MV, more or better Antialiasing quality would give a better result on the render!
And I think it is possible to reduce the visible sharp edges. Right mouse click, select "Convert to editable poly / or mesh". Than click on "Polygon" (pic 2) in the right table. Select the parts of the hull which you want for smoothing (pic 3). Scroll down to "Polygon: Smoothing Group". I think 45 is a good average value and click on "Auto Smooth" (pic 4).
Marko