Mistborn book 2's pacing actually makes sense
Almost half way through the Well of Ascension and it's really good so far and even though it's slow it's obviously building toward something and not just holding back a spoiler from you for the sake of shock value so because of that the pacing of this book is (in my opinion) actually good which leads me to my point that it is better paced than "We Were Liars" I did not like that book I gave 2.5 stars it is really childish.
Disclaimer: I am not saying you are a bad person for liking it, and I wish the author and her readers the best of health but I personally don't like the aspects of it, that doesn't mean you are a bad person for liking silly stuff that's why adults can still buy silly string.