So for reference this is a performance monitor snapshot from a few days ago before the force wipe. The server had about ~90k entities and the npcs made up maybe ~150: https://pastebin.com/MqRCsvVC
Now after force wipe on a new fresh map and nothing has changed. For some reason now I am getting ~800 scientist_heavy entities active: https://pastebin.com/mzS0h4ps
It's actually a smaller map too. Not sure if this is normal behaviour or maybe I have no idea what I am talking about just was concerned and wanted clarification, thanks!