There are lots of options - but first - any serious internet gamer would connect by ethernet cable. Is that possible - can you easily run a cable from the Hub to your son's bedroom?
What is the wifi like in the rest of your property? Do you have anything connected on ethernet cable - if so - how do they perform.
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John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.