Anyone notice a hesitation from dead stop on monster x

[Dragonfueled]

I have a monster X in a revo and when you punch it from a dead stop it hesitates for a second then gets full power. It's not a cogging hesitation but almost like its only getting 1/4 throttle for a second then takes off. Once it's rolling a little it's gone and I get immediate full power. I did the update cause when I first got it the hesitation was longer and worse. With the new firmware it's better but still there.

I allways loved the instant response of castles but this hesitation is Getting to me. This only happens with sensorless motors. If I drop a sensored motor in the hesitation is gone and can flip the truck backwards from a standstill. I use my trusty sensorless 2200 though and it's back.
This happens with multiple vehicles and every monster X I have running sensorless