I noticed a decrease in performance on planets (Ryzen 1600 / Vega 56 / 16 GB RAM / NVME SSD). I played on Ultra + terrain generation to max right + 1.25 supersampling at 2560x1080@120Hz vsync off or enhanced sync.
I got 60-70fps on Dav's Hope, now with the same settings I have 52-60fps.
After I reset to Ultra and put just the 1.25 again, I managed to have around 70fps (so basically just resetting the terrain generation slider to the middle).
But I also changed the video driver, so it's hard to do an apples to apples comparison. And since in stations looks like the same as before, maybe the slider with terrain generation was the only thing that mattered or changed.