Hair Trigger Throttle Response

[wstr75]

Our 2010 FWD RX 350 is beautiful in all respects except for a hair trigger throttle response when accelerating from rest. Of all the cars we have owned over the past nearly 40 years, this is the hardest accelerator pedal to manage from a stopped position. Too many times we lurch somewhat abruptly into motion.

I am assuming the throttle is "fly by wire" and not a direct cable arrangement (my 2006 RL is fly by wire). Does anyone know if there is a setting or adjustment Lexus can make to dampen the accelerator action a bit?

Thanks for any light you can shed on this subject.
wstr75