Nah, nothing else lags like GW2 (2k-3k ping sometimes), especially in WvW. Sure, ISPs may be able to do something about it, but they won't. I know. I've tried asking a few times. How many people play GW2? If this was Valorant, yeah, maybe they will look into it. But not for this game.
From what I've pieced together, Amazon servers have really kitten downstream providers. That is something Anet can probably do something about, even if it's asking Amazon to do something about it. There's a far bigger chance for Anet to do something about their game than for ISPs to do something about a game that's not popular.
ANET. PLEASE. FIX. THE. TERRIBLE. LAG.