I get 450Mbps on centurylink gigabit fiber in Seattle. I get 900+ Mbps via speedtest.net. I am hardwired direct to modem on gigabit LAN. I am happy to have t

I get 450Mbps on centurylink gigabit fiber in Seattle. I get 900+ Mbps via speedtest.net. I am hardwired direct to modem on gigabit LAN. I am happy to have this problem, but I have noticed most speedtests (depending on endpoint) don't report gigabit connection speeds well. I am not sure if there is an upper limit to this Netflix test or if I am actually getting throttled.