If you have 1 to 2 hours to spare at the Roman Forum, focus on key attractions that offer a glimpse into its historical significance like the Cloaca Maxima, the Arch of Titus, the Temple of Saturn, the Basilica of Maxentius, the Rostra and the House of the Vestals.
While you won't have time to see every detail, these attractions provide a condensed yet enriching experience of the Roman Forum's history and cultural importance.