I am trying to run brushed motors for a class that only allows them. It doesn't seem to be getting full battery voltage to the motors. It seemed slow so I hooked the lipo directly to the motor and it is a lot faster. I have tried a Tekin FXR Tekin RS pro and Castle Mamba Max. They all act the same with any setting I try on them. Just wondering if there is any better esc to try. I don't remember my old brushed only esc's being this way.

Not sure what is going on there, but I use an old Novak Cyclone TC on my low turn brushed motors from yesteryear. Maybe search used Novak ESC's on eBay?

Make sure your radio is throttle is set to 100% and recalibrate..