byond has stuffty netcode and lags at anything it can
The netcode isn't great but it seems like you're pulling that out of your ass.
I assume you play SS13, it lags quite a lot on there since BYOND's netcode cannot handle the constantly updating atmospherics system, as well for a load of other objects that are "constant" in that game.
Most BYOND games are much more lightweight on the netcode, thus less lag.