Asteroid Belts cause huge performance issues

[Deantwo]

Code:

[SUPER SECRET COORDINATES OF DOOM!!!!]

Ref: 7 FPS ingame

Got the coordinates in a PM.

I landed on the habitable world in the system. The in-game FPS counter was about 30 for me while on the surface.
Only real thing I noticed was that there are two asteroid belts in the solar system, not too far from the habitable world too.

I also got asteroid belts in my home system, visible from the home world. Maybe this is causing some performance issues?
I'll have to compare with a few other systems.