I have a brand new Archer AX11000 router. Hooked it up and all is well. My son and I were on Steam last evening, 2 separate gaming computers, and my bandwidth is heavily compromised when online. We are both ethernet cabled in and I go from 60 mbps to 11. Is this normal or do I need to do something different?  I have not done the link aggregation and in fact, I put the ethernet cables OFF the router and back to the network hubs I have. 

My old system would handle it all just fine, but it seems that this is a significant drop. Do I have a setting that is "off" or needing to be activated?  I have asked locally and noone seems to know.