Originally posted by Wariat117:

each terraform modification is additional "instance" in game
it's known issue, it's unknown if devs plan to change it

you can press F2 to see instances
at 10k it becomes terrible

https://i.imgur.com/CeVcrFn.png

well ♥♥♥♥, this world is boned for me then. walking anywhere near the main island where we built our base just absolutely murders my framerate im lucky to get 15 fps when idle and 5 when walking.