Game still lags on 500civ and crashes in Singleplayer without Errorcode

Game Version:

  • Build idk
  • Platform steam

Issue:

Game laggs like ■■■■ on biggest map settings and 500 civ - Singleplayer crashes without errorcode
If someone in the lobby has a bad connection it is unplayable for all players - is it possible to play asynchron in multiplayer? so that if i have a good connection i wont lag? its frustrating that my high end gaming PC laggs on playing a 2D game. - the game itself is awesome. i was used to play it 20 years ago on my win xp computer without laggs :smiley:
please fix this issue <3

Reproduction Steps:

  1. just try to play on max settings and full lobby

(ATTACH A SCREENSHOT IF YOU ARE ABLE!)