Finally managed to track down the issue where I would get occasional hesitation/stuttering under 3k RPMs when the car had warmed up. This issue affected the car both when doing average acceleration from a stop and also when cruising say in 3rd or 4th gear.
Solution? Swapped the ignition control module in my distributor with a spare. I didn’t initially suspect the distributor components since it had low miles and looks brand new on the inside. It was one of the components moved from my old CRX, and if memory serves I may have had this issue on the old car.