My guess for Black Diamond by Advanced Electronics

My guess for this ESC algorithm is this ESC monitor how much amps draw and see if amps draw increased or decreased on throttle position.

when throttle getting pumped or at high position and amps draw dropping than it increase timing.

like when you drive a 1:1 scale car, when RPM gets steady you will changed to next gear.

current Tekin software increased Timing (RPM) after set delay and that only works if you hitting same line every time coming in to straightway.

but with amps sensing, as soon as top speed is reached with fixed timing (1st gear) it kicks in with higher timing right away to reach faster speed sooner.