[NeveHanter]

There are mods that make map smaller, make dupes move faster or add tiles that allow them to move faster. You can also train the dupes' athletics skill by forcing them to use the manual generators.

The Spaced Out DLC also has smaller asteroids, it changed the game so it now requires more "inter-planetary" automation. I highly recommend trying the game with the DLC, but I'm not sure if Steam allows refunds for DLCs.