Personally I take my time and think about the best strategy and tactics that I could employ to outsmart / outmanoeuvre the AI. I enjoy winning fights with minimal, or better yet zero, casualties and resources spent. I take pride in this.
Then again, my wife hates me for taking so much time to think and plan, and refuses to play any turn-based coop with me. Oh well.
Answering your question - no, I don't think combat is too slow. Even the temple courtyard's battle runs at acceptable speed for me. Especially after Larian somewhat sped up the combat AI a patch or two ago.
