Ah I see. I was thinking of a per-surface override because a lot of modded planets have no enemies, but I don't mind a global constant I think pollution will cause attacks sooner or later anyways until one gets late game cheeses, since pollution generate chunks too.

Currently, it is set to generate chunks about 1 chunk per second in a 20-radius around the player, result in a minimum of 41x41 = 1681 chunks per surface when a player stays on it for sufficient time. I play on a modded server with around two dozen planets, and the resulting map size quickly ...