Soul Gravy - It doesn't matter if you're in the lefthand lane because you're passing. Lefthand lane goes to the person driving the fastest overall. If you're in the lefthand lane passing someone in the right, and someone comes up behind you, you need to move the fuck back over immediately to the righthand lane and let that person pass you.
No you don’t have to do shit, I’m not passing somebody at a snails pace but I’m not speeding up for some cock sucker driving like an asshole.
Lol... It isn't called the fastest car lane. Its called the passing lane. If you're passing, you're good.
You have no responsibility, legal or otherwise, to monitor the speed/acceleration of cars on the road behind you.
If someone is maintaining the legally required safe distance behind you, then they can't be going any faster than you. And you're not required to have traced their trajectory from some point farther down the road behind you.
Nobody knows what your dream-speed is, and they're not required to care. Only to be passing the traffic on the right.