Do you have an OBDLink dongle? You could purchase the EVBatMon app, which will query the car on amphour capacity. Initially, my range didn't change much from the original battery before failure, but since then I have gained about 3 Ah of capacity. The computer will slowly update as it learns the new battery.
Do a few 2 bars or less to full recharges and see if it improves.
After returning home last night, I still had 39 miles RR, even with heat usage (reading taken after turning HVAC off). RR didn't spike up, but instead stayed steady most of the trip (it did increase by 1-2 RR for each downhill regen, though). It was 73 RR this morning (normal).