Hey thank you all very much. That is exactly what happens with mine. Thank you for the link and the term Throttle lag.
Now I can use a name for it to the dealer. There are some good theories about what might solve it all having to do with Driving style.
Il try it. Turning off traction control etc. Its particularly dangerous when making a left with traffic coming towards you. You know where you have space if you punch it,
you get half way into your turn and no power.
Looks like the dealers have told everyone they cant do anything.