Is there any plans fort acher ax20 to support 160mhz channel via future firmware upgrades,or maybe archer ax20 hardware can't support 160mhz channel?!

Why i can get only around 50mbs on 2.4ghz while on 5ghz i get around 250-300mbs?! i tried to chanage channels and playing with some other settings but still I can't get more than that!!!

how can wireless speed be higher than routers wan port speed? for example archer ax20 has 10/100/1000 gb wan port but 5ghz speed is rated up to 1201gb/s

Does anybody know if archer ax20 has mu-mimo support, becuase I can't find anywhere?!