To introduce my son to the world of Sur-Ron I would like to limit the power to 1 kW and speed to 20 mph. Is there any way to change this configuration on the controller? Or would the modification of the Throttle-Output (reducing the range to 0.85-2.2 V) and Speedmeter (what would be the max voltage for 20 mph?) be the better solution? Thanks for any help!