Hello, I built the navigation system for War Pigs. I am truly sorry about the frame rate drops. Unfortunately the 3dNavigation system in Godot 3.3 is very bare bones, and I was limited in time to better optimize my use of it. I thought of limiting the number of pigs more heavily, but decided that detracted too much from the fun of recruiting a large army. On the plus side there are major reworks to this system due for Godot 4.0, hopefully that addresses some of the performance issues we ran into.