All of this is interesting.
I'm not overclocked at all and I get 80fps most of the time with peaks to 400fps, with 120fps at most outposts. I have everything set to Ultra @2160x1440 30.hz, no sync and unlimited frame rate.
Ryzen-9 3900x @4.0Ghz-OC from 3.8Ghz
DDR-4 3600 Ram
AMD-5700x not overclocked at all
OS/Game code running from an NvMe 2.0 Gen-4 Extreme R/W.
My point is, all of you overclock to get those FPS rates and when I don't, I get more stable FPS than you do, because I'm just not seeing it on my PC. (thank you Fdev).
Anyone try not overclocking to see what happens?
EDIT: I'm only seeing 60%-70% CPU usage around stations and planets and it never goes higher than that.