Ride quality has ALOT to do with dampeners as well…
I moved from a 450/450 springrate on my car on cheap dampeners. It rode like ass 90 percent of the time.
I now run a german made koni valved KW coilover set on 400/400 rates. The ride is 100x better. In some cases better than stock.
If your shocks cant control your springs your gonna be bouncing around like a pinball.