If you're club racing check to see if your class allows esc timing. Some only allow mechanical motor timing to be adjusted, sometimes called blinky classes.

I'm not familiar with that RC or how it is setup, but in general more timing advance will increase the rpms and power. Be careful, it's easy to overdo and burn up a motor, and easy to hit diminishing returns before that. Check motor temps and acceleration response frequently when making changes. Try perhaps 5° at a time to start, even less as it heats up.

Also getting the gearing right is important. Try a larger pinion gear on the motor, again checking temps and acceleration response as well as top speed.