I have a more optimized build coming after the jam! Managed to 50x the framerate so that should let you push a bit further. And yeah that's something novel I came up with to solve the problem I have with eg: Factorio.
I stuck it here https://gx.games/games/v29ydo/factoree-idle-factory-tycoon/
That's great, I love it when little innovates like that come out of jam games. I'll happily steal that idea if I ever do a deep factory game :D.