Hi Schnarchnase, sorry to hear you’re having some fps issues. We have oddly variable performance from different systems. We get reports of people with 5 year old systems working well and brand new powerful systems having fps issues like yours. We are working to track down these issues.
We are aware that some software really doesn’t play well with the game if they are running at the same time. We don’t have a solid master list of things that conflict but we have had reports from several users about VPN software causing problems. If you are interested in doing a little troubleshooting, I would recommend turning off as much software you can and see if it helps. It’s probably not a resource issue but rather a specific piece that is having some issues.
I would also recommend double checking graphics drivers but that’s just a ultra generic thing that you probably have already done.