As the marketer for Travel The World.com, the user experience for the site is Harper's responsibility. She enjoys creating rich, impressive content that creates a welcoming environment for users. But the slow performance of the site frustrates her. What's a factor that's likely slowing down the performance of the website?

Videos is correct because rich media content like videos can significantly increase page load times, especially if they are high-resolution or not properly optimized for the web. While videos enhance user experience and engagement, they can slow down TravelTheWorld.com’s performance, leading to frustration, longer load times, and potentially lower conversion rates if not efficiently managed.