Yeah it's definitely not turbo lag. It's just a really laggy throttle. You can sit in D and repeatedly tap the throttle and it won't do anything. There's seriously a 1-2 second delay and it's borderline dangerous when trying to accelerate from a stop. Interestingly (and frustrating), there is no lag when in park!
I'll be speaking with my dealership this week. We need some more responsive software badly.