Hi there, thanks for the question.
this sounds a lot like a fueling issue.
if I were you I would start by replacing the fuel filter and bleeding the fuel system at the #1 injector.
then see if the symptoms clear up
if they do not then you likely are having an issue with the control valve on the pump, if your dealer has a scan tool he can try to recalibrate and see if it takes, if not you will need a new valve.