He's had a # of bad performances in this series: G5 for instance, he had a great stretch in the 3rd quarter, but the other three quarters he was average to bad. He was bad in G1, G2, and G3, had an inconsistent performance in G4, and another inconsistent performance in G5. In his last two games, he's missed a ton of shots in the first half, and yet his team still managed to maintain the lead.
Curry's been most consistent than he has (which isn't saying much, since he's been inconsistent as well), but judging from this board you'd think Curry has been stinking it up every game and CP3 has been this superhero.