Conceptually slowing down time is pretty cool but there's not much reason to switch back other than for convenience, except in the part with the bouncy platforms where I found out it was easier to gain momentum at regular speed and then switch to slow time to clear the gap. Regardless, there's a lot of content in this game for such a short amount of time, though as of right now the optimal playstyle has virtually no use of regular time. Perhaps there could be some obstacles that make use of regular time, or a limit/cooldown to slowing down time to make things more interesting.