VP is becoming more and more suspicious. I don't really have any reason to like him or to root for him. What's his deal?
He uses people. He owes Bonney an explanation and he's holding back info to the Strawhats, too.
And if I were going to split myself into multiple parts to improve my efficiency, why would I devote one of them to violence? And greed? And one who's entirely evil??
All of the VPs have dumb drawbacks:
Atlas is rash and thoughtless. Lilith is, too.
Edison is worthless in emergencies bc he's running around getting ideas.
Shaka is possibly "good" to a fault and will turn on our protagonists.
York is a Playdoh fun factory that doesn't have a brain.
Pythagoras is slow and accommodating, but powerless against more passionate people like Lucci or Lilith
Lilith is greedy and short-sighted.
And that's how I feel about Vegapunk
So yeah, Shaka is probably the traitor.