ASUS rt-88u - Adaptive QoS not doing it's job (for Gaming)

Hello,

I've tested the router yesterday and was really underwhelmed by the adaptive QOS feature. (tries newest stock and merlin's FW, router was reset and configured from scratch after each switch)

Coming from a Linksys WRT1900ac, when gaming is still got ping spikes when windows was downloading some updates, or when uploading something to youtube.
Isn't the adaptive QOS there in order to prioritize gaming packets and throttle all other activities??

I'm really pissed off cause this router...

ASUS rt-88u - Adaptive QoS not doing it's job (for Gaming)