Scores are now recorded on the hub. I was tempted to wait, but my efforts seem to be going towards making the game easier for a casual audience. If I offered a change that happened to make it harder, the top scores could be rather untouchable. As it is, I might as well use them as a form of feedback.
[EDIT: Mind you those scores are recorded every level. I understand that the songs last a while. Your time is respected so you can quit when you'd like.]
Meanwhile, SuperAntx mentioned that having travelers turn just before the scanners makes it too difficult. I was able to edit the first map easily. The third map has the same attribute, but there doesn't seem to be room to move things around without making paths shorter. That might not matter as much so I'll adjust my design priorities. Fortunately, the maps cycle back around and the first edit affected 25% of the game.
Ignore the color changes and floor tiles. The game randomly adjusts them every level.