I have a male normal that eats like that too, last time I fed him I came out of the room and told my girlfriend that he would probably try to eat a frozen one if I dangled it in front of him.
My lil lesser is a beast too, earlier this week he had a 23g mouse and then my dumeril's refused a 22g one so I offered it to him, he snagged and downed it like it was nothing... and he's only 85g. I wouldn't make a habit of feeding like that but it was better than tossing it cause he was the only other in quarantine that could use it.