Virtual scrolling renders only visible items in large lists, dramatically improving performance by reducing DOM nodes from thousands to dozens regardless of total dataset size. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented virtual scrolling in data-intensive dashboards. The most reliable approach is using vue-virtual-scroller library which handles viewport calculations, item positioning, and dynamic sizing automatically. This method provides smooth scrolling performance, supports variable item heights, and maintains accessibility without complex manual calculations.