"Low stamina" means having a low amount of energy, strength, or endurance to perform physical or mental activities for a long period of time. Full definition
He has very low stamina and always looks exhausted at the end of games. (sbnation.com)
France and Arsenal should change the way they play, to accomodate slower players and the ones with low stamina. (justarsenal.com)
The obsession to shadows and reflections can be experienced by any kinds of dog breeds, although large breeds with high chase or prey drive are commonly more susceptible compared to lower stamina small breeds. (practical-pet-care.com)