2014 Ford Escape's RPMs keeping jumping between 35-45mph?

I have a 2014 Ford Escape 2.0L that when I accelerate between 35-45mph, the RPMs jump and the car shakes. Before or after those speeds it's fine. Would a transmission fluid exchange help with this? Car is at 73k miles. Purchased at 31k miles. Have not gotten a tranny fluid exchange yet.

It never hurts to change the ATF. Just don't flush the transmission. There's likely an ATF filter that can be replaced so drop the transmission pan and change the filter. ATF should be changed every 60,000 miles.
A poorly running motor can also cause this. Have you changed the spark plugs yet?