Neither the official patch nor the unofficial one alter the way multiplayer works. It's kind of understandable why it was locked to real-time combat, the feature was intended for online play, and having to wait for a player who got distracted from the game to complete their turn would've been uncomfortable. I'm not aware of any mods that change that, though who knows. It may be possible to artificially slow down the game with external software to make combat easier, but this likely won't improve the overall experience.