You said 20 days ago that you are working on it
You said 3 months ago that you were working on it
You said 2 years ago that your working on it

It's getting WORSE and WORSE and nothing is improving at all
Atm it is actually impossible to play the game at all in raids / instances

Are you actually looking at your servers at all? It should take you 10 minutes to see the lag on Evernight