I'm not sure if he's a little tired mentally or physically after how much he's carried this team to start the season, but he's clearly not as crisp in his moves. Earlier in the year, he looked as good as he ever has with the fluidity and lack of hesitation in both his face-up and post game. Now, he's looking to draw the foul a little more than complete the shot and he's holding his release (on an assortment of his shots) longer than usual; he's almost aiming and measuring to a degree, instead of shooting in rhythm and trusting his shot.
He's gone through plenty of these stretches in the past, so hopefully it's nothing more than that (he doesn't look to be hurt or in too bad of shape physically).