Disconnections and Lag

Halo Wars 2 right now is completely unplayable right now for me. Every second match I disconnect (and I know it’s not my internet because I’m still in the Xbox party).
It happens most in 3v3 and 2v2. Once our armies are bigger it starts to lag more.
My beam does no damage when Im hitting them directly.
I can’t move my banchees, they’re not responding and only move 5 seconds after I tell them too and by that point they’re all beamed down. The lag continues on and then usually results in me disconnecting.
What can I do? im starting to give up on HW2

Also I’m from Australia