AMine said:
… the only place I’ve ever watched it was actually on my laptop.
As others mentioned, some movies need a “cinematic” experience to work. It’s related to pacing, photography, sound design, absence of distractions, etc. On a small screen you don’t notice certain details that keep you engaged.
Check if there’s some theater running classical movies around you. It’s a completely different experience. A good example is 2001. Slow movie if you watch it at home, feels tense and fast paced in the theater.