I think ghost-catching peaked on the first game.
I agree - the combat in LM3 is enjoyable and fun, but not particularly thrilling. It's fun how OP you are, but at some point, you miss the tension of being dragged around by the ghosts and aiming for that perfect run.
What did you like about the original's combat? It's been a long time since I played that game so I don't remember it too well.