He’s like the energizer bunny

So I’m involved with a new guy. Sex is great I get off every time, multiple times. But I can’t say the same for him. Since we’ve been involved he’s only cum once. And I finally realized our sessions are long asf too. Like 4 20minute episodes of a Netflix show long felt like a quickie. And still nothing... I kinda feel bad, because I ask if there’s anything I should do differently and what he likes but he always says it’s perfect. Does anyone have anyone have some tips? I feel like I’d have to run a train on him for him to come