The correct answer is: Videos
As the marketer for SellYourCar.com, the user experience for the site is Olivia’s responsibility. She enjoys creating rich, impressive content that creates a welcoming environment for users. But the slow performance of the site frustrates her. Videos are likely slowing down the performance of the website.
Graphics and video are two things that can slow down your site. As the selection of these often involves marketing teams, consider the following ways to help keep your pages fast. Make sure developers are using graphics and videos that can be displayed in the right size and format. Desktop-sized files shouldn’t be used for mobile devices. Eliminate unnecessary images, videos, or automatic carousels, which can distract users and slow down page load.