Hello Neil, there is a way to bypass the not existing QOS feature in the router... so the idea is to specify certain IP addresses for other devices connected to the router by MAC address (except your gaming pc) then putting a limit to the "other devices IPs" for download/upload speeds like 100% (of download/upload speed) for your PC and if other devices are connected your PC would get 75% and 25% for other devices (75% and 25% are just as ex.) this would grant your PC either 100% or 75% so other devices can not eat the speed to the limit where gaming is not operational.