Just because a fuse is blowing now does not mean the motor is overloaded or overheating.
It means the fuse is too small for the prop and motor combination.
TT purposely made the stock prop smaller to gain more battery run time.
The larger prop you are running now is just more in the power range the stock motor should be in.
The ESC is total overkill at 170 amps max.
Even considering they are Chinese amps it is still impressive.
The week link is now the mismatched fuse.
The scimitar prop is better but we have run it side by side with a modified Rabosche prop and the Rabosche sub just walks away from the TT scimitar.
Using the stock fuse too.
But that is what makes the hobby challenging. No right or wrong way to do it.
Just your way as long as it works.