thank you for the comment!! you taking notes on paper is probably the highest form of praise, because it meant that the game was both engaging and difficult enough to force you to do that! :D
and don't worry, you're not slow, it's the kinda game where if you miss some vital stuff, you kinda stumble around. for some people it was easy to complete it on their first playthrough, and for others it took quite a few tries. it just depends on which things you miss and which things you notice, so everyone has a different experience!!