when a player click ready the game doesn't wait for other players so, is only single player at the moment?
also, the cpu AI have a big hole if you play with less than 4 ants, cpu never attack you so you can easily get 200 foods doing basically nothing.
my pc is powerful and still struggle to run the game after a time, due the dead ants are stocking in the screen... you should fade them out after a time, also I suggest to put a population limit.... after a hundreds ants, the pc is struggling too.