hi
First of all c4d animation render is really sucks.why??
Because ,flicker and too much blur
but you can still eliminate those stuff
-you can bake (if your project is not so big or a lot of details)
-you can use vray for c4d (but still sucks)
-you can render still image option than use another program like adobe after effect.(with this option your movie nice, sharp and flicker free.
good luck
durul erdem