Those people probably have stronger leg muscles and a higher VO2 max than you. Endurance is something that's difficult to build but by no means impossible to. It's also possible that you're underfueling or dehydrated and need more carbs or water.
If all else fails, 52 Bomboclaat pussywagon white monsters
me too lol
in that you'll just lose all your energy so it's best never to move more than you need