With full throttle press the power is being restricted/reduced. Sometimes it reaches 100% for a short while then reduces to 40% for example, therefore speed attainment and acceleration is drastically impacted, to the point of being dangerous when joining motorways and dual carriageways. Sometimes the car won’t accelerate beyond around 55mph, other times 65mph, other times 70ish
Seems to happen more often with a lower state of battery charge, around 40% or lower, though it’s also happened at 80% charge
Videos
All of these are taken with accelerator pedal full to the floor throughout