Hi DesuDeus, that does not really look like a geometry smoothing problem - is it possible that your object is particularly small or large and is running into some kind of distance related bias value in Maxwell?

Also your image looks pretty grainy in other spots, it could be possible that you just need to give it more time to crunch away to get better render quality on highlighted areas, the unbiased render mechanisms can be like that.

What does it look like if you use the built in C4D renderer instead of maxwell, does it look all proper there?

- Michael