I seem to have hit the limit.
Adding any more ICs drops my FPS to near 0. I was at about 30 FPS before I added the 245 near the dip switch for the B register, around 20 after. (The FPS in bottom corner isn't really accurate to show overall FPS)
I'll start messing around with other circuits, but I don't think I'll be able to continue with the 8bit computer until it's a bit more optimized, if it can be.
Also, I'm using bluestacks with 6 cores and 24GB of RAM allocated.
Anyone have some suggestions for other cool circuits I can start fucking around with?