I've noticed that I have considerable struggle streaming - even with a hard wired ethernet connection (it gets very sluggish and keeps disconnecting etc.) - when I enable parental rules stopping devices (including the device from which I am streaming) from a bunch of specified shopping websites (about 20 URL's). If I turn off the rule, or just remove the device I am currently using from the rule - the problem goes away and my connections are much faster.
This is definately an issue with the speed of the Quantum Fios router, and may or may not be something that can be fixed with a router firmware update. Verizon - when can this be rectified?