Yes,
It is most probably the converter light off with huge spark retard but usually this must be limited in a way that it shouldn't be annoying.
After the poor start it is shooting up to high RPM (16 to 1800), hanging there and then coming slowly down. This is so bad that sometimes it even stalls or really misfires during the first few seconds.
It's very bad in the range of 20 degrees (heated garage) but also not much better at any other temperature.
My daily work consists of engine calibration and I just see that our customers wouldn't accept such a poor start quality.
I feel that there will be another dealership visit on Monday...
Greetings:
minime911