Well the HV-Maxx was never intended to be really as powerful like the other set ups out there.
It is exactly fine as it is.
It is intended to be reliable, stronger and faster than stock and give good performance and help others come into a brushless system for a monster truck.
I personally think its a great set up and I think it has plenty of power needed.
I have one and I hope to put it in my TXT-1 soon.
Personally, I think scary power is very subjective.