As many players have obtained level 70, many of the A Realm Reborn and Heavansward A and S ranks are being killed far too quickly, not allowing many level 50 or 60s enough time to land a single hit, if at all.
Suggestion: Make A/S ranks similar to a fate Mob where you must level sync in order to engage them. No visible ring need be present on map but once a player enters a certain radius of the mob, they are prompted to level sync (just like fates).