Don't go buying one but if you have one to hand, throw it in and try it out. The Parmiters tracks are not usually power tracks as you will have seen. Someone once told me there is one straight and 12 corners
Having a slower motor will give you more time to pick your line and reduce marshalling.
If its too slow I have a 13.5 I don't need you could have for £20 if you fancy a softer motor or just do what JR suggests and turn it down. Can your ESC turn down power as well, some speedo's do a "Blinky" mode with no timing that will calm it down a bit.