I don't see you answering the question.......what mode are you driving in?
Mine has a "lazy" response in COMFORT and NORMAL. However, in SPORT and SPORT+ it's pretty much immediate.
What mode are you driving in?
Current: 2014 BMW M6 Saphire Black, RPI GTM Exhaust (axle-back)
Previous: 2011 BMW 550i M-Sport, Carbon Black, Dinan Stage 3, Meisterschaft GTC Exhaust