broken PG is broken, at this point - like many other things that were promised to work better but worked out as they did - its unfixable
Personally, despite the fact it is a yet another lame underdeveloped buggy feature in this supposedly AAA game from a supposedly AAA studio, I could live with the star clusters being totally lame squares but the "smudged" misshaped textures on planets visible from certain angles, and the "jumping" star texture issues that were supposed to be fixed in original beta are so jarring that I have simply quit playing, probably forever
Btw. Fumaroles and geysers suffer from the same kind of "cheapest solutions programming" as visible in galaxy generation. Its slightly less visible due to lower contrast and lower density of objects but you can still see they are generated in square shaped areas where straight cut lines are clearly visible under some inspection...
poor PG is poor, B tier team is B tier. No ways around it.
Basic art concepts are great, top tier stuff, but its let down by an old bloated unoptimised engine, the sound team is amazing as well, but the rest... below average unfortunately... add to that the price and cheap nickel and diming for content and... you have made a fan into a disgusted hater (with some hope left - but it mostly serves to fuel up the anger)