I have tested the speeds at various times and seems never to peak over 10mbps now. Saturday/Sunday mornings 8am no better. Disconnected all my other phones in house etc. just router into main socket - still 9.5mbps is best. I usually got over 11mbps from Fuel.
Interestingly now "Speedtest" tells me I'm with TalkTalk (Arrrgh - left them 2 years ago - another story!), why?