Hi Lime, some of the things you've mentioned have been noted, specifically the speed issue. We are going to make changes once the game jam is up for sure based on players like you giving us a wonderful insight into what didn't work as well as we would have liked and what did.
This being our first GMTK game jam it's all been a great learning experience. The leaderboard is a great idea for future additions and potentially other game jams we may join. Thanks for taking the time to comment!