Recreational Vehicle Lpg Tank Valve/gauge problems of the 2016 Jeep Patriot

Automatic Jeep, has difficulty shifting between gears when accelerating. This is especially noticeable when going a slower speed (I. E. Turning a corner, in rush hour traffic with stop-and-go speeds), but does do it at higher speeds (ex. 60 mph to 70 mph). It does not seem to have issues when down shifting. The vehicle has a very noticeable lurch/shutter when it is attempting to shift to a higher gear and will do it repeatedly in a short period of time. The vehicle needs to be driven a while before it will occur, I drive it about 20 miles before it starts exhibiting the issue. The issue is most frightening in city/rush hour traffic because it seems like the vehicle might stop running all together. The vehicle also seems to struggle to make it up hills, as if it does not have enough power to make the climb of even a small hill. The rpm gauge really jumps up high to about 5-6 when climbing a small hill or accelerating 5-10 mph to pass someone on the highway. The issue started before the vehicle had reached 60,000 miles. Filters and oil have been changed several times and fuel injector cleaner has been added to the gas several times, none of these measures have changed the performance issue of the vehicle.