Maybe I’m confusing it with mood, but Vader’s presence in ANH is something that’s more ominous. He’s often not the focus of the shot, and it creates this really great eerie effect; like how Leia backs up into him when Alderaan’s about to be destroyed. Vader inspires dread throughout ANH, but his hallway scene is all about terror. And that’s fine, that’s great, but explosive Vader shouldn’t be his opening. It should come at the end during his duel with Obi-Wan so that it feels like a major payoff to the hints that they both possess incredible power.