Try2Handing Iodent i talked about the way it works in icewind Dale because thats the last RTWP game i played. NWN 2 has a very different engine with its own problems stacked on top. I also dont think RTWP supports multiplayer better, id id play NWN2 Storm of Zehir in multiplayer quite a bit and the result is... having to pause a lot for both players. Having your actions suddenly interrupted because the other player wanted to adjust one of his characters, which especialy in NWN2 can lead to a lot of dumb stuff like your character forgetting what he was supposed to do. .
Yes, in RTWP, for MP I always disable the pause. When you're driving one PC you shouldn't need it.