Thanks a lot for the feedback!
You're right, multiple solution would totally make it interesting. But I prioritized making more levels since I probably wouldn't have the time to add even more mechanics to each level. I plan on working some more on this game after the jam, so I will totally try making this - it's always fun to give the player a choice on how they'll solve a puzzle. And I do agree about the speed being slow, wish I had made that faster but oh well ¯\_(ツ)_/¯