Answer:
Postponing the plot in order to focus on Theseus.
Explanation:
Suspense is a feeling of intensity a reader experiences while anticipating an intrigue's outcome. Authors have different ways of creating suspense whose objective is to <em>awake interest</em> and <em>encourage further lecture</em>.
In this particular excerpt, the delay in events is produced by a sudden <em>episode</em> on Theseus, an important character whose story <em>slows down the denouement of the main story.</em>
"Then doubt not Faustus but to be renowned and more frequented for this misery than heretofor the Delphian oracle" pg 9
Spoken by Cornelius. With black magic, Faustus will be so skilled that he will become famous and more sought-after for help than the renowned Oracle of Delphi.