Just checking his stats, he's swinging at fewer strikes(about 2% lower than his career averages), and when he does swing, he's making less contact (about 5% less than career averages). Swinging at 5% more balls out of the zone and making less contact on them by another 5%.
HIs overall swing rate is at 50% - appears he's not being as aggressive in the strike zone, and ends up swining more on balls out of the zone. Maybe pitch recognition issues or just not having a solid game plan on what he's looking for.