Everything is fine with me, but I have one question.

I bought (Heroes of Might and Magic V - Hammers of Fate)
I'm creating the largest map with a Dungeon, for 8 players. After about 10-15 turns, the bots start to "freeze" and think (from 30 seconds to 2 minutes)?
My system isn't weak; it meets the requirements.
So, it's not the system. Can you tell me what the problem is?

Michael.