Thanks for the response. I can see how it could be misleading to compare the React SPA version of my site vs the WP site based on an AB test, however, the results are there to show you the benefits of the React-rendered application are not only between pages (which you can easily see and experience the speed enhancement) but also the fact that you get to "First Paint" first. By limiting the server overhead (I could've enabled compression for the React Express server, but I didn't), you get to the page sooner. And although the "fully loaded" times appear about the same in the links you provided, the perceived speed by the user is much faster on the React version. Do you not agree?