So how is the factorio process able to use 70% of the cpu on my PC?

Dual processor quad core 3.0ghz xeon with 32 gigs of ram. Average CPU usage for entire server is 25 to 30 when Factorio is running (and running slowly). Average CPU usage on the PC when hosting and playing is 60 to 70% and no lag. It is not the processor. We have also tried running the headless serv...

I install through Steam and run a headless server with only the flags Factorio.exe --start-server-load-latest. I am on 14.21. My question is, is there some sort of limit to headless server memory that isn't present with the standalone version? We have quite a large map, the file is about 70 megs, an...