To be precise, let's look at the rpm/v rather than T or R.
The rpm/v (KV) of this hobbywing 9T brushless motor 4300. If you make reference to Novak brushless motor, the KV of 10.5R is 4200. So, a 9 ...
Normally sensorless brushless motor is faster than those with sensor for same no. of turn. Novak is with sensor. Hobbywing is sensorless. But they are different brand, quality, etc.