Right. This is one of my favorite examples of how badly bloated the web is, and how full of stupid decisions. Virtual scrolling means you're maintaining a window into content, not actually showing full content. Web browsers are perfectly fine showing tens of thousands of lines of text, or rows in a table, so if you need virtual scrolling for less, something already went badly wrong, and the product is likely to be a toy, not a tool (working definition: can it handle realistic amount of data people would use for productive work - i.e. 10k rows, not 10 rows).