Congrats on putting something together and submitting it to the jam. That's usually something that most give up on and don't finish.
I would like to recommend, especially when tackling, something new to keep it small and very specific. The game provides me with melee, range, and some time mechanic (sorry, did not get to a point where I saw the effects) to work with all at once which can be overwhelming especially if they don't provide immediate feedback.
Maybe remove the combat, focus only the exploration/puzzle elements, and how the time mechanics fits into all of it. Once you have that polished, then work on the combat. :D