Granted she can't keep up with speed, but I would gladly trade a few mphs for longer range.
Then do just that. :)
The OW+ motor is 750W, but it only consumes what you command it to (look at the joint speed/power graph in the leaderboard). Thus it won't consume more than the v1's 500W motor, unless of course you push it above v1 specs (acceleration and speed wise).
Seems to me like you're puzzled drinking twice as much from the same bottle empties it twice faster... ;)