Performance issues

Hello everybody, new player here. I bought the game a couple weeks ago and I'm very much enjoying it but as my base grows bigger I am experiencing performance issues. I am playing single player mind you. I am running the game on a laptop, with 16 gb of RAM, amd 5800h processor and a 3070 8 gb 140 watts mobile, wich is roughly equivalent to a 2060 desktop. No matter what i do settings wise, i can't keep a stable 60 fps inside my big ass base and when fighting with lot of npcs. Literally every settings i change does not make a difference, except low end laptop mode but thats like not an option. Is there something i can do or are my specs just holding me back?