Honestly, Welcome to OCE. This is a very big issue in OCE currently and all the guilds we (my guild) have spoken to are the same. I honestly don’t know any other OCE person / guild that does not have performance issues on our servers and all you will get from support or the forums is “local issue” or some load of BS that just = we don’t care and don’t think there is a problem.
We are currently stuck on Sire Den Mythic prog just becuase 8/10 pulls you can’t get past p1 due to the insane lag you get. here is an example post from another guild saying and showing this (plus the BS responses Mythic Denatrius P1 server lag )
OCE servers are just horrible and no one will fix. Goodluck