Ive tried the traffic prioritization and can say for me personally it has done nothing. My connection is simply too fast for COD. I believe players with great connections get some type of artificial delay added to them, even if just a couple milliseconds. The gm runs fast and smooth for me but when engaged with someone Im killed as if playing hardcore mode. All the youtubers who have these amazing game clips you will notice a trend, the game always looks slower, and they rarely take a lot of damage.