Currently there are very few viable zones for efficient grinding, killing 8 mobs and having to run around for 30 seconds to find another 8 mobs is pretty boring.
My suggestion is to significantly increase the mob density and respawn rate in a few maps, there should be far more maps like demon prison/mausoleum chapel at different level ranges.
Ideally I’d like to see some zone with such a high spawn rate that I need to hide in a corner to survive. 
Where are you seeing this? I have yet to encounter a map that doesn’t have an area with 30~ mobs that constantly spawn.
Literally any zone past level 50 has this issue.
[quote=“FxFighter, post:1, topic:92209, full:true”]Ideally I’d like to see some zone with such a high spawn rate that I need to hide in a corner to survive.
[/quote]
Tenet Chapel, in short /heh
But uh yeah, it’s true that past lv50 it feels very awkward especially right after leaving Tenet Chapel, it’s like you’re back to a tutorial zone, really e_e
From semi-high paced action with parties to… nearly nothing. Except some kind of boss marathon, if you follow the quests.
Yes most of the 50+ zones are the problem areas