Also consider that once you are off the interstate system, speeds are subject to the hills, turns, etc. Not wide open as the western states.
And we have low bridges, something many are not used to. A Trucker's Road Atlas will help with that. Not sure if there's a smart phone app.
Hills generally not as steep as you will find west of the Mississippi except in parts of WV and VA.
True but we do have a number of switchbacks and many long grades, although not as steep as other areas, but very deceiving because of their length. These have caught numerous people off guard.