I'd noticed too in what has been heard. it's probably a combination of things, like people said having some time off, slowing things down. I wonder if his stationary position at the mic has helped too. Some people noted it in gig reviews and it was evident in the glasto videos, he is spending a lot more time standing at the mic stand which probably helps him get better control. Even though he'd not exactly done Gaga dance moves with a mic whilst singing in the past, concentrating on his breathing and such is probably a lot easier when stationary.