I don't it does, because when Total War: Three Kingdoms came out, there were interviews with Dr. Tim Gosling (their head AI behavioralist dev) and he talked about the AI in game. Pathfinding was one of the things he had mentioned for AI, especially in battle, and how they had to program the individual units to know when and where to best position themselves once battle started. That's hundreds of individual units acting and taking in thousands of different lines of code to determine an action. This is on top of the environment, special effects (smoke, fire, animated units), high quality models etc etc. The AI, both Campaign and Battle, for Total War is far more complex and takes far less to power it.
I'll see if I can find the interview again.
EDIT
I found it.
How Total War AI is evolving to be more fun – and how we’re stopping Skynet - Total War
Total War without opponents – someone, indeed, to wage total war against – really would not be the same game. While multiplayer is a host of delights, we don’t all always have a friend available to be an Orcish punching bag at two in the morning after a couple too many grogs. That’s where...www.totalwar.com
I'd be hard pressed to believe Bannerlord has even half that much going on as TW typically does, but a coder or whatnot can correct me if I'm wrong. xD
Bannerlord has a lot more calculations going on that are far less optimized, in TW units of 100-300 men act as one entity in bannerlord you dont have regiment system so each individual npc acts on its own and requires equal amounts of computing power, for cav its even more.
Taking into account npcs need to consider blocking and attacking as well and not just executing random animations that just calculate hp defense and armour stats like in TW for the entire unit, here npcs calculate all of that plus their next move.. The only way to optimize it is to introduce some sort of unit mechanics that eliminate npcs individuality and have them act as entities as in TW, but the issue here is that this entire entity instead of having to fight another entity will have to chase singular units so just imagine ur unit of 200 infs chasing just 1 singular bandit unless all actors are part of bigger entities it wont work so currently each npc is an individual.