I am using the ISP provided CGN3 modem/router. I used my phone (Speedtest by Ookla App) to perform speed test. I sat 5 feet away from the modem with nothing in between. Wifi Analyzers App shows 2.4G SSID -33dbm and 5G SSID -34dbm. My ISP package is 75/10. The test results shows 73.4 Mb down and 10 Mb up when my phone is connected to 5G SSID. But the speed is only 33.4 Mb down and 10 Mb up when my phone is connected to the 2.4G SSID. It seems that 2.4G is only half of the speed of 5G. Is this normal ?