Okay so, first you should post on !satisfactory@lemmy.world.

That being said, congrats your factory has officially grown to a large state. 4 cores will NOT be enough to run this game.

To understand how the server works, it chunks the entire game map and then shards that across available cores. So your 4 core server each core is handling a quarter of the map. That’s a lot of factory on one core kemosabe. My server is a 24 core beast with still very high single core rates. You can feel when you’re working on another core that has less load when you walk into a new area and your frame rate jumps.

Beyond getting more cores and a higher single core clock speed, the other massive thing that will help is spreading your factory out. Allowing your factory to take advantage of multiple chunks and multiple cores will have a noticeable impact. Make very liberal use of trains, my last factory had over 60 rail lines and 100 trains running around. It’s a lot easier to manage a train car with 10,000 items stored as an integer than hundreds of miles of interconnected belts that it constantly has to shift around on.

I’ll have more info later, should probably write a wiki, but those few changes will have a noticeable impact.