Thank you for your kind words. Happy to know you enjoyed it and considers it one of the greatest you played! :D
We kept the first two levels easy for a initial understanding of the mechanics, specially for users without much familiarity with puzzles games, so I can see how your expectations weren't that high during the first 2 levels.
A speedup button for sure would be a great addition, I totally agree and we actually thought about it, but couldn't implement it due time. So, yeah, for post-jam features, that probably would be one of the first items in our to-do list.
We appreciate your feedback and glad you liked the puzzles :D