Couple questions to start off:
1. How big is your map? Did you go with default size, or something bigger?
2. How many other pawns do you have? By this I mean colonists, prisoners, raiders, and even wild animals if you can hazard a guess.
3. You say no red or yellow text, I assume you mean nothing looks wrong in the debug log, correct?
4. Are your bots actually working? Like, if you stare at them do they go around and complete hauling jobs or just slowly move around uselessly?
5. How many, if any, other mods do you have?
A bunch of questions at once, but something to start the conversation with and rule out a few possibilities.

引用自 BKBarbee：

Couple questions to start off:
1. How big is your map? Did you go with default size, or something bigger?
2. How many other pawns do you have? By this I mean colonists, prisoners, raiders, and even wild animals if you can hazard a guess.
3. You say no red or yellow text, I assume you mean nothing looks wrong in the debug log, correct?
4. Are your bots actually working? Like, if you stare at them do they go around and complete hauling jobs or just slowly move around uselessly?
5. How many, if any, other mods do you have?
A bunch of questions at once, but something to start the conversation with and rule out a few possibilities.

1. default size yes.
2. I have 5 pawns, no prisoners or raiders, 0 animal.
3. Yes, nothing in debug log.
4. They actually working, pick and move to drop goods, this part this all normal.
5. I have 78 mods.

Actually, I might find out the reason about bots make game lag. I mark too many stone on map to "want to move", I cancel them all, the game back to normal even the bots still working.

That could do it. Bots usually make the game struggle from how much pathing they do, so having too many jobs available for them makes sense to me.

so they are queing up jobs and if they have to many the pathfinding gets the performance down?