My turn around on movie cuts started with the Harry Potter films
I used to hate when movies left out book stuff (like, seriously, why skip those cool details?). But after seeing how the Harry Potter films trimmed down the longer books, I realized it helped the story move faster. My tip is to think of the movie as its own thing, not just a copy of the book. For example, the film cut some side plots, but it made the main adventure feel more exciting. Now I watch adaptations with an open mind, and I enjoy both versions more. Try it next time you see a book movie, it might change your view too.