[Broken]

I am fairly new to racing (done 5 meets) and trying to improve my driving, I currently have a 6.5t losi motor in my sv2 and am wondering if I should persist with it and turn the wick up on it when my driving has improved or should I change the motor and if so what would be a suitable replacement?

The settings on my esc currently have 70% throttle limit, 0° timing, with the medium throtle map, there is no punch or boost options.