ok. so, on blm i can do the hawthorne hut leve 'stew for two' 3 times in under 5 mins. that's starting the time from starting the first leve and turning in the last. i had the wanted hunt in one of the runs. 6.9k xp per and 1.3k bonus for the wanted monster. 22,000 xp in under 5 mins. any job that can set sleep can do this. you just sleep all the mobs and pick up the mushrooms. i know there are a lot of fates with a similar "click this and a monster will spawn on some of them, click 5 things to finish". 22k being how long it took me to do three i'm sure you could go through quicker once you get in a groove and the layout/number of wanted monsters. that's not too bad?
Sometimes around level 30 I do the one at costa del sol that is like that, you can actually range the first few mobs that spawn while you pick up the rest of the items, no sleep required just sprint.