Show one piece of content (image, rich text, or form) at a time via a quick menu. The intro remains static. Great for a short list or quick comparison of features, product photos (e.g., before-after photos), etc.
Page speed impact:
Low initially — it depends a lot on the content you add. It may have a medium impact with the Form option, or even high impact if you add heavy resources (large images without lazy loading below the fold, videos, call-to-action, etc.). Make sure to optimize your images with TinyPNG before uploading. Use optimized SVG files whenever possible.