My concern with the x-world hunts is there seems to be a race to get them done such that even if you are in a party and on the train from the start...you often arrive at a target already half dead. I don't even try to make it to an S rank x-world unless it is a SB one.
Perhaps instead of a 5 minute window...all S ranks are scaled to lvl cap. Spawners would need help to kill them and you would have more time to get to it if it cant be killed in 10 seconds.
