Some class passive abilities may be overloading the server.
DK's "Mountain's Blessing", Sorc's "Exploitation", NB's "Hemorrhage", Templar's "Illuminate", Warden's "Maturation", Arcanist's "Circumvented Fate".
There are several trigger conditions, but they all have one thing in common: unintentionally spamming too much.
Why aren't these "Give ever minor buff to yourself and group members without any activation conditions"?
If the results obtained are the same, it should be better to have a lower load on the server.