KotOR 2's style of music isn't that drastically different from the first game, so I have no idea where you're coming from.
That said, just listen to the music when you're inside the Jedi Enclave on Dantooine, or the music playing during the Korriban Arrival movie. They're both great pieces.
Music is much easier to craft when it's telling the story, to be in sync with the visuals. Given that the in-game cutscenes for the most part move at the pace you want them to, and that the CG movies don't last very long, it can't sustain to tell a story that's totally in sync with what's going on screen, so a lot of it has to be more like background music. So I think the music in KotOR 2 is amazing for what it works with.