You can add one or multiple equal cards in rows and columns. Can be used for almost anything: feature important content, link to resources, showcase products, services, etc. It can include an icon, image, label, text and button.
Also available as a type of content in the Listing module.
Page speed impact:
Low, if not above-the-fold, unless you add heavy resources, such as: large images without lazy loading, videos, Call to Action buttons instead of Link buttons, external widgets, etc.
Medium, especially above-the-fold on mobile, if you don't properly size and optimize your images.
Use TinyPNG to optimize your images as best as possible without losing in quality, or consider using a vector image (SVG) whenever possible, which is usually very little in size compared to a JPG or PNG file.