The server.

Playing this game for 21k hrs.Never in my life when the new league start and the server suck so hard. How the fuck is that even possible? you guys making so fucking money. Fix it? Even Apex or fortnite has even better server?

It's a surprise (to GGG) every league when the servers go down. I don't think they will ever fix it. Either because they are unwilling, or simply incapable of securing quality infrastructure. Regardless, no excuse.

This league they even acknowledged the issue, but clearly has not even come close to fixing it. On the contrary, it's somehow worse and goes down when no one is playing.

https://www.reddit.com/r/pathofexile/comments/1roh55p/server_stability_update_for_path_of_exile_mirage/