yes that’s bassicly all the tune is. Run on 91. And get 370lbft Vs the 270 you get on 87I daily a 2.3 in my mustang and it is a great engine. Better in all respects compared to the 5.0 in my '89 mustang. Drive it and you may be surprised. It will satisfy most people and the rest will have the V-6 option.
The down side to the performance tune is it will most likely require premium gas. But 370 ft lbs compared to the Jeep 3.6l 260 ft lbs - you're going to notice the difference.