As others pointed out - let them. On average all lanes move the same, they might even move away once the lane stops moving. You'll have much worse time rearing

As others pointed out - let them. On average all lanes move the same, they might even move away once the lane stops moving. You'll have much worse time rearing a car then letting all those cars in. I also keep additional distance in traffic to minimize slowdowns/stops, which ultimately actually improves/fixes the flow.