I drive in [moderator edit] and can relate to the poor road conditions in the right lane. I've also had lolly-gagging idiots merge into my lane while I am there.
They usually figure out I'm there late, then give me the freeway salute and blast off into the front somewhere. I guess they think I should slow my speed so they can merge at any time they choose, rather than matching their speed with the traffic already on the freeway. It's amazing how many people don't see a Class A motorhome in the right lane.
The thing that gets me into the fast lane on a 4 lane secondary road is overhanging trees. If any of you have ever had a tree limb sweep your roof clear of all attachments, you probably do the same. I've had this happen twice on a truck camper, and my Class A is taller, so I'm paranoid about it.
Not all secondary roads have the low trees, but a significant number do.