Hi nameless, well definitely having a whole lot of little teeny tiny fillets adds significant data size. One thing that can help with that for mesh exports is to use the "Avoid smaller than" setting during the export. If you put in a distance value there any patches smaller than that size will get meshed with a rougher angle and so be sparser than normal. So try putting in the width of your little fillets and that would help your downstream if things are getting unwieldy.

- Michael