Because its size is now absolutely surreal , and it has a cube shape. What I want to suggest is to make it large as it is IRL And swap the cube shape... And get more real galaxies in it and objects like the Sloan great wall. I hope you get my concept
Also, SpaceEngineer says here that it will be made realistic, and thus such suggestions are unnecessary, and here that expanded catalogs will be added eventually.
All forum users, please read this! My SE mods and addons Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM