So I checked in youtube and most of the videos I have seen of real lvls 200 hunting there, they make over 800-900k/h maximun (stamina bonus), the only one who showed 1.5kk/h and recommened to hunt in a lvl 150-200, was actualy a lvl 400 hunting there.
Variations in the exp/h and the profit of course depends in the way of hunting of a player, if he full box or not, if he does the correct route on the cave, if he has good skill and set, if he is full imbuyed, etc. But the difference of 2 players of the same lvl hunting the same respawn is not usualy so so different; for example I hunt in asuras, RP 500, with an ED 550 making 6kk/h (150%), while an RP 570 with a MS 550 of my same guild do over 6.5kk/h; as you can see the difference is not huge, and the ms kills way faster the respawn than an ED.
Skill matters? ofc but they dont make a huge difference, the level and the set are for me the 2 key factors that influence in the hunt.