Mobile First vs PWA. Which website design strategy delivers the fastest Page Speed Index score to website visitors?

There are many pundits that are pushing a narrative that the answer to slow websites and a better "User Experience (UX)" is to develop a Mobile Web App. Because of the simple fact that Progressive Web Apps (PWA) use JavaScript extensively, I have never been sold on this narrative.

You are going to compare the Speed Index Scores of two different web technologies (Mobile 1st webpage vs. PWA) that allow visitors to play a game of Tic-Tac-Toe!

Which web design strategy do you think delivers the fastest Page Speed Index score to website visitors?

Let's Play Tic-Tac-Toe

👍Separate web browser windows will be displayed to make it easy for you to compare results.

1Play a game of Tic-Tac-Toe and, review the Speed Index scores of a web page designed with a Mobile First web design strategy.

2Play a game of Tic-Tac-Toe and, review the Speed Index scores of a Progressive Web App (PWA).

Are you surprised by the Mobile and Desktop Speed Index scores?

Here is a quote from Tim Kadlec ❝There is no faster (pun intended) way to slow down a website than to use a bunch of JavaScript❞

Would love to hear your comments, opinions, and thoughts! Raul Gonzalez