Not lasting long?

So my man does not last very long. I would say he lasts about three minutes. The thing is, after he finishes we go again if I have not finished yet, or he eats me out until I’m done. He says he doesn’t think that’s something he can change. This is okay with me because he’s honestly the love of my life and like I said he makes sure I’m good too, I just like being close to him honestly. But does anyone have any tips or something that could make help him last longer? I’ve tried slowing things down to a turtle pace but sometimes he gets really annoyed and Impatient with that and he grabs my hips and that’s that lol. Is this like a normal thing for guys? My previous partner could last like an hour plus but maybe that was just out of the ordinary?