Hello, we cant understand why all the servers are lagging so much, but not everyone just half of squad 5 of 10 guys dont you know about that?

If only some of the people are lagging there are a few possible reasons, but namely it's that their ISPs or an upstream provider of their ISP is poorly routing to the server. This is rare, but it does happen. Unfortunately, there's not a whole lot we can do on our end. ISPs that have poor routing may suffer bad connections, packet loss, high ping, etc., but it's outside of our network. Your best bet is to try playing on another server location to which the players may have better routing. If all 10 players were lagging than it would likely be something in our network, but I'm checking our metrics now and things seem fairly stable at the moment. Hope that answers your question.