New loot is a lot slower than what the old one was.
Example: Looting a herb on 5 characters yesterday took 0.25-0.5 seconds, today it takes 4-5 seconds.
I noticed that, if I put Jamba's auto loot on and then go to Blizzard's Interface options and enable auto loot from there, I get fast loot similar to yesterday's, but after one loot/node Blizzard's autoloot is disabled again.