First Input Delay && Gatsby


What is it?

I got a message from google search console that there were performance issues due to first input delay that I need to address seems to impact SSR JS sites (like Gatsby) in particular

Sites that use server-side rendering (SSR) may also be worth examining the FID of, as they often present the site quickly but then have to hydrate on the client with added JavaScript functionality (event listeners and so forth).

Philip Walton:

Tracking in Gatsby: