SDuna

My issues was a combination of not setting up the server config correctly (settings higher worker threads and generator threads to take advantage of the server processor) and what appears to be a disk I/O bandwidth issue. I used SteamCMD to initially install my server files to an HDD and basically got the same lagging issues; this still persisted even when I migrated the server files to the an SSD. Here is where things get interesting. Under the premise that the disk I/O bandwidth was the issue, I transferred the server files to a RAMDisk and ran the server.bat there. Other than occasional small lag spikes (because my upload bandwidth is small), I didn't see anymore issues with large faction wars or with a large amount of fighters. Any lag from that point on seemed to be client hardware bottlenecked.

When you say 8 mb are you referring to 8 mb/s? What is your allocated upload bandwidth?

I have a few questions for you since I, and the people on my small dedicated server (similar to yours), used to lag for the same reasons until I found a workaround (specific for my issue though). - Are you running the Avorion server off your SSD? - Did you install the Avorion server through SteamCMD (and if so, are you using Steam authentication)? - Have you checked the network usage on your server while the server is lagging (related to internet upload bandwidth)?