I love the exact kind of goofy medieval setting you're working with and I really want to keep playing it, but as of right now it's too difficult to play with the sensitivity up so high. Also there's the issue of not being able to close the books or other menus because for some reason I can't move the cursor any lower than this (see photo)
Maybe it's just me? I tend to have some bad luck with that lol. I'm running the game in Chrome if that helps, and I tried downloading it instead but it wouldn't load at all that way.
Anyway, I really like your ideas and what little I saw of the game was very charming! I'd love to play it more in the future.