For those in denial about any delay in the DSG box - it is physically impossible for the box not to have a delay going from N to D1 (or S1).
When you are in N, the box has no idea if your next intention is to go forward, or backward.
What it does then, is to line up one of each onto the two shafts. It pre selects R on one shaft, and 2 on the other. It selects 2, because it cannot select 1, as 1 is on the same shaft as R.
So. Pre-selected, ready to go, is R and D2 (or S2).
When you do move the selector to D and accelerate immediately, it will start in D2 (or S2), and then it un-selects R and selects 1, and then electronically shifts you to D1.
All this, of course, takes time.
To reduce or eliminate this effect, shift from N to D, wait for 1 to 2 seconds, then when you move off (accelerate), you will move off in 1, instead of 2 (had you not waited).