I'm on PS4 and noticed that since the housing update delve mobs are spawning ridiculously fast, perhaps 20 seconds or so after killing them. I want to test some more delves tomorrow but it was happening this evening in Chid-Moska. Also noticed that certain containers are respawning very quickly. I was playing with a friend yesterday, doing The Veil Falls. I'd go in and out of the Veiled Keep door while waiting for my friend to get to my location, and the containers outside the door would have respawned their contents in that amount of time.
Was this intentional or is it something that is going to be changed or fixed in a future patch? I don't mind so much about the containers (haha) but I like to stealth a delve, take my time, loot all the containers, and it's practically impossible to play them that way now. Maybe it was just that one delve, but I'm hearing from other people I am talking to about this on reddit that it's happening to them in other places.