I would really like to know if there is some setting to increase bandwidth to the widi receiver as well. I think overall video quality could be improved. However - if you think about it, Netflix HD uses about 4 Mbps, so 10Mbps should be plenty for our needs. I think the jittery video may be something else, but honestly, I just don't know what. The CPU use on a Core i7 ivy bridge is about 5%. I suspended services that caused DPC latency, like ACPI.sys, bringing DPC latency down below 500 microseconds - no real change. I just started testing my Belkin Screencast yesterday and noticed 1. Occasional popping sounds using Pandora (internet music) which isn't present when not using WiDi, and 2. Some video frame drops. It turned out the video frame drops were from the actual video- I pulled up another video and it looks great - but it was a slower motion video so I can't tell if there are going to be other issues. I'm going to do more testing.
At this point, I'm wondering if a wireless HDMI transmitter may be a better solution. The Brite-View HDlight apparently works on any device with an HDMI port, uses a 5ghz channel, and has extremely low lag, but it cost twice as much as the used Belkin I got for 60 bucks, and of course its something you have to plug in to your HDMI port on the laptop.