The slow left lane drivers are the most common. They don't realize that interstates are designed to have traffic FLOW. It's ok to drive at different speeds; just don't plug up the passing lane if you prefer a slower speed.
This one is the most annoying and why I admire how its done on the Autobahn. If a vehicle hangs too long in the left lane they will get a ticket.
In Illinois there is a law that states that the left lane is for passing only and is enforceable with a ticket, but I have yet see it actually enforced.
No one prefers a slower speed. I’m in the left lane because traffic in the right lane is congested and slow (and passing isn’t safe). If the speed limit is 70 mph, and I’m doing 76 mph in the left lane, that ought to be fast enough for you. If you need to go faster than that, you need to leave earlier.