6.4 hemi dart swap

Thanks guys. So I took it in the freeway for the first time it ran well but stayed at 195 for temp .. around the city this thing cools down very quickly. About 10 seconds from 190 to 185. 180 stat. fans go on at 190 and off at 185. Stays at 185 for a good bit.
On the freeway the fans are on but according to the Holley dash but it’s not cooling down.. I have a shroud on it. Should I make little pass throughs for air escape at high speed?? Or just turn the fan off completely on the freeway. I’ve heard it restricts airflow with high speed. Not that 195 is bad it’s actually normal but it cools down so good on the street it should be the same if not better on the freeway right?