Update README

10x is upper end

README.md

@@ -29,7 +29,7 @@ model while keeping your code closer to your data (and ultimately your source of
 
   * **Rich templating language:** Enjoy HEEx: a templating language that supports function components, slots, HTML validation, verified routes, and more.
 
-  * **Diff-over-the-wire:** Instead of sending HTML-over-the-wire, LiveView knows exactly which parts of your templates change, sending minimal diffs over the wire after the initial render, reducing latency and bandwidth usage. The client leverages this information and optimizes the browser with more than 10x faster updates, compared to solutions that replace whole HTML fragments.
+  * **Diffs over the wire:** Instead of sending "HTML over the wire", LiveView knows exactly which parts of your templates change, sending minimal diffs over the wire after the initial render, reducing latency and bandwidth usage. The client leverages this information and optimizes the browser with 5-10x faster updates, compared to solutions that replace whole HTML fragments.
 
   * **Live form validation:** LiveView supports real-time form validation out of the box. Create rich user interfaces with features like uploads, nested inputs, and [specialized recovery](https://hexdocs.pm/phoenix_live_view/form-bindings.html#recovery-following-crashes-or-disconnects).