Connectivity to the POE Servers makes game unplayable

Hi,
I'm pretty sure I'm not the only one who has this problem.

I'll go through it step by step:

Login to the game. Everything is fine. Ping is stable at 18ms.

Joining a map (not every map, it's random), ping runs up to 3000ms and then back to normal, and that happens every single second.

At first I thought: OK, my internet has some problems.

So I tried different games, looked up my ping to Discord and so on — everywhere my ping was stable at around 15–25ms. So I thought, alright, let's try PoE2 again. Well, no. Ping spikes again up to 3000ms.

The same problem also happens in the temple. Standing by the terminal, everything runs smoothly. Entering the temple — well yeah... ping once again has the time of its life spiking again, this time at 3500ms — at least a new value I have never seen before.

Oh, before someone suggests: try using different methods to route your traffic. Already did that. Changed my entire home network. Also tried using Cloudflare as a VPN and so on. So I literally tried everything I can think of and it's still the same.

It should be doable to fix your game servers so that it's not always a gamble when you enter a map — whether you can actually play it or it just spikes to the point where you start questioning yourself: do I want to play this game in its current state, or do I just quit for good and pray that someday this thing gets fixed?