I have a '12 Camry LE 4 cyl. A car often panned by enthusiasts for being a transportation appliance. Ordinary modern car? Yep.
Well it and almost everything else car wise these days handles like a million bucks. I can locate that Camry on the road within an inch or two at 80 MPH. Effortlessly drive mountain roads at advisory speeds and beyond. Fly along like all the other car traffic.
One thing when it comes to RVs, I think we need to be more accepting of the fact we're slow vehicles. That we can't keep up with even average passenger cars. That a mellow slow drive isn't bad. Maybe that helps put the handling issues in better perspective.