Honda E incorrect vehicle specs and degradation calculation, non sticky manual adjustments

I know the car is not widely used, but I've been frustrated that this issue has not been resolved in the past 3 years.

First, I noticed that the vehicle specs are wrong. The battery is not 36 kWh, but 35,5 kWh.

Second, the car does not release more than 32 kWh. The “degradation” calculation using the OBD values is incorrect as a result of the app using 36 kWh as a reference value in stead of 32 kWh.

Third, the car has a 10% reserve when the car shows 0% on the dash. This means that the battery capacity between 0 and 100% is actually 28,5 kWh.

Fourth, I've been trying to make the app give me somewhat useable estimates by manually adjusting the values for maximum speed, consumption, and battery degradation, but these manual adjustments seem to be constantly being overridden by the app when I restart it (it prioritises both the OBD values and the incorrect vehicle specs on file).

I understand that the app wants to use real-life data, but in this case it keeps reverting back to an incorrect interpretation based on incorrect vehicle specs, and then not allowing the necessary adjustments to stick.

It would be nice to have the vehicle specs corrected, so that I don't need to squirm around it with weird manual adjustments.

And if that's not possible, it would be nice to have deliberate manual adjustments stick across driving sessions.