Okay, so… As someone who has a BEEFY computer, the fact that the multicellular stage lags my computer so hard is a very large issue. The multicellular stage should be optimized. I believe this could be caused by the fact that my computer is having to draw so many polygons. I feel that this stage should automatically zoom out a bit and therefore simplify the organelles of the cells. This could also simplify the soft-body sim of the cells (If they’re using one). I have not looked at the source code at all, so I don’t know what’s causing the issue yet. I’m just spouting ideas I know work well to reduce lag. I also suggest looking through the code itself to try to optimize processes from there. I have some experience in game development, but not enough to know all the ins and outs of optimization.