Performance difference between using drawRound, polygon shapes, SVG and bitmap sprites?

Hi,

I am making a game with many (50-100) Balls, that are flying around, with gravitation, collisions, rotation ... simple physics. Mostly they are round, colored, filled, some are transparent (shadows), some are distorted. Is there a relevant performance difference between using drawRound, polygon shapes, SVG and bitmap sprites? Bitmaps would look much nicer because of texture ...

Thanks! Christian

probably not big enough to notice at the scale you are making the game at.

also my names christian too, lol.