You skipped over what I said: > if you're, for example, re-rendering your entire VDOM tree on every keystroke in an input field > This part can be optimized a

You skipped over what I said: > if you're, for example, re-rendering your entire VDOM tree on every keystroke in an input field > This part can be optimized around fairly easily if you know how The framework can render them, just not update them in the naive way (so in some sense, yes, it is possible you're "programming it wrong"). > the next barrier is number of DOM nodes The other problem is the browser itself, not any particular framework.