I don't see him ever slowing the game down. He passes as soon as the ball reaches his feet. If anything he's faster on the counter than we're used to. VDV is usually either playing as a striker, directly off the striker or on the wing.. Normally directly off the striker.
Since he's always playing for us in an attacking position I'm not entirely sure the word "despite" belongs before his "excellent goals-assist stats."
And no, I'm not trying to pick your post apart, I just don't understand your logic here. Let's just say for example that we put O'Hara in the position that VDV has been playing, just off the striker. If when he played in that role we scored more goals from open play and set pieces than using a traditional 4-4-2 with 2 traditional strikers up front, would you say that he's bogging us down in midfield?
Sometimes we do get bogged down in midfield. I've seen BAE slow down play inexplicably. I've seen Huddlestone do the same, but at least you expect a pass to come out of it. Every time I've seen VDV on the ball it's in an attacking position, unless he's tracking back to defend.