Quest Respawn timers are too high.
It is difficult to know exactly how long any given clickable should take to respawn but some of these timers are in practice too long. For example many of the item respawns are well over 5 minutes and each person in a group must wait. When you have 15,000 people waiting on an item to spawn for 5 minutes at a minimum of 52 DAYS assuming someone clicked on the item as soon as it spawned before those 15k people could get the item. 5*15000 = 75k minutes / 60 = 1250 hours / 24hrs = 52 days. While not all 15k people will try to do the quest there are more players than 15k and it is very unlikely that someone will be waiting to click on every item as soon as it spawns 24/7 for two months. Not every quest of this nature is required but plenty of them are part of longer chains with either pre-raid gear rewards or necessary to progress in the zone. Changing all items respawn timers to a maximum of one minute would reduce this down to 10 days for the server to hypothetically complete said quest. Realistically it wouldn't hurt anyone to reduce world spawn timers for clickables and considering the vast faction imbalance it could help alliance players having a hard time questing because of bottlenecks in spawn timers.