Slow down! You're speeding recklessly. (but also you're still impeding traffic, it really depends on whether you are keeping up with a car, or a car is keeping up with you)

Get an e-bike, even faster. License plates and road insurance are unavailable, but doesn't stop drivers from saying you should have one on a measly bicycle. And it doesn't matter if you genuinely want a plate/insurance, it's not a thing.
Slow down or keep the same speed. (You know where this goes...)
Ride on the sidewalk. You refuse to participate in the arms race of speed. (See also, arms race in relation to car weight, headlight brightness, etc.)