18th June 2026
If you’ve ever tried to display hundreds or thousands of items in a React app, you’ve probably watched it slow to a crawl. React Virtuoso fixes this using a technique called virtualization. In this beginner’s guide, we’ll cover what it is, why it matters, and how to use it for real blog content — step by step, in plain language. The Problem: Long Lists Are Slow Imagine a blog with 1,000 posts shown on one page. Normally, React renders all 1,000 items into the browser at once. Even though a visitor can only see about 10 at a time, the […]
