Blood, sweat and rage were good looks for Diana, Thor had to admit. Something about the sight wound him up in ways he didn't have time to acknowledge right then. If they survived, maybe. But with Hela and Enchantress together, that wasn't exactly likely. As Diana did her thing, Thor charged power. There wasn't a lot of ambient static electricity, far less than there should have been for one of the most advanced cities in North America, so it took Thor a bit of extra time to gather the necessary power. Hela approached Diana, clearly not backing down or even taking her seriously as a threat.
Amora, the Enchantress, commanded the last of the Jotuns to go after Diana as well and like before, Thor cut them down. The next shot, lightning, went straight after Hela.