In the manager where it says "0h" (or however many hours it's been since updating) next to the pause symbol if you click it you can set each task to less frequent periods. Monthly sets it to 5 days for some reason (even though months are 15 days), and yearly is 60 days. That way important tasks can be updated daily but less crucial foraging jobs etc. can be set for longer periods between updates.

Also you can just set the managing job to 4 (or 9 with some mod that gives more job priority options). They will only manage when they have nothing else to do.