Thanks for your reply, but this is in no way an addon issue and has not been resolved in the slightest. There are ongoing server issues that have persisted for months and years and are widely known.
There are several support request threads in various forums complaining about the issue. There are complaints daily in game by many many people about the persistent lag.
There’s a thread here Ability/Loot Lag on Oceanic Servers Despite Normal Latency that was created in 2018, has more than 2200 replies, is on-going to this day and has not seen a blizzard reply since September 2018 despite their initial involvement in the discussion.
Those of us who play on Oceania servers, who have recently had our subscription fees increased for no good reason and yet now get less for our money, would like some actual customer service and we are all very well aware that this is the only viable place we are likely to receive it.
There is zero point in opening a ticket for what is a widespread issue and dealing with the usual ‘delete your addons’ and ‘this is not a game hint service’ cut and paste replies that are often forthcoming.
So this forum is pretty much it, and many of us are frustrated at how we are being treated, “mostly a player-help-player area” or not.