Link speed of Apple TV 4K

I have a wifi router that seems to be running slow over wifi. My internet provider is providing me with 100mbs download speed internet service. I checked my internet connection by connecting a Mac directly by ethernet cable to my modem then connecting the Mac directly to a lan port of the router using an ethernet cable. The Mac connects to the internet at 118mbs download speed when connected directly to the modem by ethernet cable and 90mbs download speed when connected by ethernet cable to one of the router's lan ports. The Mac and my Apple TV 4K seem to be only running at 20-30mbs download when connected to the router by wifi.

I contacted TP-Link's, the manufacturer of my router, technical support. They had me check the Link speed of my Mac and found that my Mac has a link speed of 65mbs. TP-Link said that my internet speed over wifi was normal since a devices internet speed over wifi is around %35-45 of its link speed.

My Apple TV is also running at around 20-30mbs over wifi using my router. What is the link speed of an Apple TV 4K.

Tales