Might be a limitation of the hardware WiFi chip on the phone, software/server your testing on in speedtest app, ethernet cable from the modem to the router/AP, setting on the AP. Run a test with a ethernet cable going from a PC with a 10GB NIC directly to the modem/router and see what results you get with that.
Might be a limitation of the hardware WiFi chip on the phone, software/server your testing on in speedtest app, ethernet cable from the modem to the router/AP, setting on the AP. Run a test with a ethernet cable going from a PC with a 10GB NIC directly to the modem/router and see what results you get with that.