Our current map's skybox is extremely low, this is considering Felucia and the other planets. Felucia is depressing to look at outside the base because of how dark the color palette is, and there isn't actually much space on Felucia due to most of the map space being dedicated to having multiple planets.
I personally think our current map is one of the worst we've had, it's just drab and uninteresting. (And I personally don't think the extra tiny ass planets make it worth it).
As for the vote on this map Korm suggested, +1.
Performance frame-wise is always gonna be an issue, let's be real we're playing Gmod. The game isn't optimized very well, and definitely isn't optimized to support 100+ players plus a ton of entities and other shit happening at the same time.