Time to Interactive

How long it takes for the page to become responsive to user inputs.

Time to Interactive (TTI) measures how long it takes for the page to become fully interactive and responsive to user inputs. A page may display the contents quickly, but if a user cannot click on a button and have it do something, then they will have a bad experience. Optimizing JavaScript is the main opportunity for improving this score.

A TTI under 3800ms is considered to be fast and a TTI over 7300ms is slow.

For more information, please read the documentation on Web.dev.