How to correctly use SpriteRenderer with multiple sprites (if possible)

Hi all, i'm trying to switch my project to use Unity built-in sprites and therefore the spriterenderer to see if it can catch up with performances..

My question is: How it should be structure? is it possible to use a single spriterenderer to render multiple sprites? Or i should make as many gameObjects as are the sprites i need to render and then attach to each one a single sprite?

I'm talking about C# script, nothing visual/editor related :) Thanks!

Thanks!