I have TP-Link C5 with openwrt installed,
I have connected router to internet using RNDIS coming from Android 5G phone.
On phone I get 250Mbps
When I connect phone directly to PC via RNDIS, I get 250Mbps
but when I access internet coming through openwrt 5ghz wi-fi access point I get only 60Mbps
I wonder why is this?
PS: I talked with the network ISP and they do not throttle the speed, its something related to openwrt
As frollic said, USB is rather CPU intensive - and most routers (especially ath79) are rather weak in that regard (and with USB2 ports, it's even worse).