More lag during peak hours?

Does anyone else experience more lag during peak play hours (I’m Central time so like 4:30-7:30 pm for me)? I would think I would have less leg due to the larger pools of people playing, but I get absurd lag spikes and just feel slower in all MP modes, even when my ping is generally around 20. The only reason I can think of is this is due to being on Comcast Xfinity. I know Comcast uses shared lines for the people in the same area and use would be heavier in general during these times. Unfortunately I don’t have any other options where I live. Anyone else, especially in the Chicago area, experience this?