Problems with Eevee when working with cm scale

I’m doing an animatic for a project. In order for the animatic to be compatible with my studio’s general workflow, I’m working with cm scale (1 unit is one cm). This causes some problems in Eevee, in that shadows/ao/etc does not really work. I’m assuming this is because everything is way to physically big then what Eevee likes.
So, I guess what I’m looking for is some sort of relative scale setting for eeeve. I tried adjusting the unit scale in blender, but that does nothing.
Is there a way to do this, or is it more or less impossible to work with any other scale then meters?