HUGE lag spikes

Game mode: Online
Problem: Performance
Region: US

Me and another player I’ve met on our server have this problem, and I’ve seen it reported by other players too on the forum on other servers.

each 20 approximatively minutes we got a huge lag spike of 30 sec, where the fps drop to 1 or 2 or the screen freeze.

It make expeditions dangerous to do, as it can happen when we are climbing a mountain or fighting monsters.
Movement of character sometime continue by itself, or sometime just stop. I died multiple time for that reason.

I wanted to create a official thread for this issue, as it is a game breaking one.

Repro steps: