Whenever my comcast link gets slow I go to their speed test page and it always tries to tell me I'm getting more than what I'm paying for. Shortly after runn

Whenever my comcast link gets slow I go to their speed test page and it always tries to tell me I'm getting more than what I'm paying for. Shortly after running the test everything starts to speed up again. Makes me wonder if they have some kind of shady "squeaky wheel" QOS traffic shaping voodoo.