2021 gem e6 faster than 25 mph

Brand new to Gems. We live on an island and can drive it anywhere but the gem essentially goes up to 25 mph and not a mile over. I’ve read a bit about MM and it seems it won’t work for a 2021. Any advice for a novice?

Also, the required safety humming sound is a bit annoying. The guy that dropped off the Gem said it could be turned off.

Thank you for any advice.

MM will not work on Your E6. You could try installing a new transmission with the taller 12:35 gears.