Thanks for the reply.
The lags that I mentioned seem to happen regardless of the density, a few of this guys make the game go nuts, while the game can handle 100 Wengari Axe Throwers at once. Higher densitys will just cause the game to crash instead of just dropping FPS.
Enemies that significally drop your FPS (mainly in Arena):
- Frostmaws: FPS drop when they dash/leap and huge FPS drops when they hit you. All the other “maws” variants also make your game drops FPS, but not as much. This guys make the game collapse, the only way around it right now is to one shot them with a range build as they spawn.
- Skullen: The regular small ones that do a little roll and then throw big rocks at you. As soon as they spawn, game suffers, if they roll, your game is doomed. The big variant of this enemies, the Pyromancers, dont seem to lag as much, even when they roll and on big numbers.
- Girant Rats: Not a huge issue, but when they jump as a big pack, FPS gets pretty bad.
- Skittering Undergrowth: The jumping plants. Again, these guys are like rats, when they do their jump/leap on big numbers FPS drop hard.
It seems to be related to some specific dashes, as other enemies like Thralls, Imperial Shadows, Fallen Osprix, Ebers and Wengari Berserkers do not cause as much lag when they dash, even on huge numbers.
Non dash related, but another mention to enemies that cause FPS issues are the Ice Elementals, their projectiles make your FPS drop hard, have the nicknamed “fps killers” among the community xd.