Well yes that is also true but not what I was meaning. If you have a 270kV motor on 10s with this esc and a 160kv motor on 10s, with both the same gearing and everything (same sized motors, same wheels) they will both reach the same speed, but the 160kV motor setup with have more torque because it has a lower kV.
Here’s the math:
270kV x 42v = 11,340rpm
160kV x 42v = 6720rpm
If there was no rpm limit the 270kv motor would almost double the speed of the 160kV one but since there is a rpm both motors only reach around 6400rpm so they will both reach the same speed. So if you want the most torque and Speed use 160kV, if you don’t mind just go with the 270kV