Ah well, there's still this thing in Cinema making it absolutely non-competitive & incapable of handling huge scenes... simply create ten thousands and more (10k+) of Null objects with Mograph Cloner and watch it crawl to a halt!
Less than a decade ago (w/o VRay, Cebas fRender or any other 3rd party engine) it use to be that alpha maps, leaves on a tree could kill a whole day rendering. Even Maxwell & Fryrender were faster. There are some funny C4D secret bottlenecks no one wants to show. :p X-particles for the win. :) Still no fluids... :o
Mograph (infographics, HUDs, simple animations...), Product viz, Light to Mid-Weight Archviz... simple scenes - simple setups is where it can thrive.So think simple, find the simplest solutions you can do to pass by.
;)