Damn your website script limits the actual speed we get, using cloudflare as your CDN doesn't always mean that we get the same speed that we should be getting. you should rather ask what DNS we using so you can calculate speeds properly. Plus you using riddle for the test page which also slows...
My line has degraded over 3 days from a 200/200 to a 50/50 and they can't seem to find the problem, however i believe that the network is over saturated.