How do guys last so long...?

I'm a guy. 28 turning 29 soon. I'm not in a relationship so it's condom only. I've only had condomless sex once in my life.

I stopped watching mainstream porn, and instead watch "ameteuer" couples on cam sites. Only CB. Most of the time I am not watching them to get off, but some ideas when I have sex with a FwB or a date.

One thing I've noticed is that guys last so long. I'm talking going doggystyle for 20-30 sometimes 1 hr on these sites and not cumming.

Meanwhile I'm cumming in doggy and missionary within 1 minute. I'd love to last longer as my FwB has a very sensetive area and I feel bad when I cum so quick.

How are these guys doing it?