Lorena should probably try to create more ideas relevant to the subject and elaborate on them.
Explanation:
Lorena should add more material of her own in the speech. She should avoid repeating her examples or previous lines. By adding more sub-topics that are relevant to the topic, she will be able to talk on more than five minutes and educate the listeners with an expansion of the subject of her speech.
She can also try to present more examples that do not give away the impression of being monotonous in nature.