Copper degradation does affect Unifi connection – but its still acceptable considering its within the 80% mark.
This is from http://speedtest.tm.net.my
This is from http://speedtest.net
WHen i was using 4mbps Streamyx – i usually get about 3.5mbps, hence a loss of about 10% speed. So i should be expecting Unifi speed to be about 18mbps. Then again – its still more than enough 😉