Can't help to notice some misconception.
Lower profile tries - in this case 20" does deliver better cornering, but LOWER ride comfort.
With pickup tires you can also play with load ratings for comfort, but for some time we had 2 identical cars where 1 was on factory 16" wheels, the other on 18" wheels with super-duper tires.
On few occasions I drove them both on the same day and the fishtailing on 16" was more obvious on the first turn, but even more expensive 18" did lower ride quality on our bumpy roads.
Can't have it all.
