Top idea!Hi mate. I have driven many 4x4’s, Dual Cabin Utilities on the road with many off-road suspension setups. The previous two cars I owned were performance cars that were low to the ground. I then went back to driving a V6 Amarok with ATR tyres when I almost immediately felt what you described, for the first time ever. I also thought the same thing - oh no what have I done, there is no way I can live with this car. However, I increased the tyre pressures up to 40psi (recommended was 32psi) and this helped considerably, and I don’t really notice it anymore. So I think the tyre pressure and me getting conditioned to the car played a part in a 99% improvement to the motion sickness. I am one of these guys who needs travel sickness tablets if I go on a boat outside of a bay. So I would be asking the dealer if you can re drive the car again with the pressures increased.
A more expensive solution could be fitting adjustable dampers and setting them for a firmer ride on road.