F-350 dually 2011.. 2012 alpine by keystone 3700re

What do you guys do to your big Dually trucks to make them ride so smooth. Mine does not ride smooth. It rides much better with the 5th wheel attached but smooth is not how I would describe the ride. Now mine is a heavy Duty Ford, Camper package, Snow plow package which means heavier springs, I also have rear airbags to keep the rig level. It is a pulling beast.It is not uncomfortable But I know I am driving a big truck pulling a big 5th wheel. Smooth?????