@lillepallt(View Post) I just tested the differences between them, and the both have the same framerate on a fullscreen of water, but the c++ one seems like it might be a tiny bit faster. This could change though, because right now, the simulation code is just a copy of the C code, i'm not sure if it will change. Also, tpt isn't really written in Lua, but it does use Lua for the console.