Brake adjustment or other adjustment on MMM??

[Desert Rc]

So I am running my MMM/2200 and when i just tap my brakes they kind lock up instantly with a sharp crack/snap sound. When I am running on asphalt the truggy will just slide out. Now the motor sould just coast I would imagine....I have adjusted the brakes lower but it just engages the snap/crack lock sound less aggressively. How to I tune my brakes to be able to apply and control my brakes more smoothly. I mean I dont even mind the fact that the fact that the brakes are soooo effective but the sound it makes makes me cringe every time. It is metal pinion on metal spur though.