If your driving over big boulders, fallen trees, and through creeks, going fast probably is not a very high priority. The Jeep being a slug on the road getting to those trails kind of falls in line.

When you want to take a vehicle originally oriented to trail driving and want to convert it into a highway machine, one should expect some things to be a bit out of line from the original design. Some vehicle designs don't cross over to other desires very well. The act of trying to please both factions creates a compromise, and then both ends loose. You end up with something that does not do justice for either end of the spectrum, it kills the original concept, and falls short of the new direction.

You don't buy a Hellcat Challenger with the idea that is going to be a fuel mileage king. If you bought it to get outstanding mpg, your going to be disappointed, but if you bought it to go fast, a somewhat lower mpg is acceptable.

Jeeps were originally built as general purpose inexpensive vehicles and earned a reputation as being great off road vehicles. The modern era has pretty much been built on those off road capabilities, until someone thought they would be great general purpose vehicles again. They did good with that until someone decided they needed to be refined and have more luxury. The cheap general purpose has been thrown out the window. Now they have become over refined and loaded up with nonessential things. That over refining and the nonessential things are killing the original concept and the very thing the brand was built upon.