navigators are fine for what they are, a casual cruise , want zippier performance ,

then thinner and higher pressure tires are the way to go,.. how much thinner ?
Cross Hybrids are in the 35mm range , road bikes are 28 and smaller ..

there are both the drop bar and straight bar sub categorys with both sorts.

Flexibility is a key. can out put the palms of your hands on the floor, standing. ?

Trek Dual Sport , just because you have a Trek,
As a Hybrid, combines straight bars, and 35 wide 700c wheels, at various price points
depending on the Spec list./.