The slow pace of the game is a very interesting decision, it made for a really unique experience that made your game stand apart from other similar controlling two characters simultaneously type games. I wasn't sure how to feel about it at first, but as the game got deeper that slow pace got quite satisfying to play as. I think it made for a very immersive atmosphere when coupled with the visuals which were stunning in their simplicity.
I think with the slower walking pace though, shorter levels are always gonna be more welcome since the player would have to put in more leg work whenever they'd fail a longer level. Very interesting in both concept and execution I enjoyed this a lot!