The problem is your wireless signal/interference, not the service level. In general, don't expect much faster rates with Wi-Fi. Although, also keep in mind that the Wi-Fi network driver/OS may throttle speed based on whether your machine is on batter...
sh-4.2# iperf3 -c iperf.he.net -p 5201 -u -b 1M -i 1Connecting to host iperf.he.net, port 5201[ 4] local 0000:0000:000:00:0000:0000:0000:0000 port 50133 connected to 2001:470:0:238::2 port 5201[ ID] Interval Transfer Bandwidth To...