Hello!
I might be dumb, and did something that I shouldn’t… but I found something that kills me and my fps.
I tried to solve it but with no success. basically what happens:
You create a spritemanager, and you have any mesh that is active.
then you scene.freezeActiveMeshes()
now the spritemanager for some reason starts to create infinite drawcalls 
here is a repro: Spritemanager bug Playground