9.5 motor is pretty mild, it's not going to set the world on fire, especially in an SC10. You can get more punch out of the motor using the Tekin Hotwire, advance timing on the ESC.

You can adjust the brakes on the ESC, I can't remember the mode number, check your instructions. Braking goes up to 13, and is really weak low number straight out of the box, but braking is fierce at 13.

You should be fine once you are familiar with the on board system. It is an awesome ESC, congrats.

Check out the EP Off Road section, you will get good tips HERE.