title: Will chunk/bundle optimisations help on my website if first Input delay(FID) is already less?
body: <p>According to core web vitals there are only 3 core vitals for measuring the user experience of any website LCP(Largest contentful paint), FID(First input delay) and CLS(Cumulative Layout shift). According to <a href="https://developers.google.com/speed/pagespeed/insights/" rel="nofollow noreferrer">Pagespeedinsights</a> or CRUX dashboard, FID of my website is in good limits i.e 90% of users have an input delay of less than 100 ms</p>
  <p>Will there be any benefit if I do the chunk optimisations(splitting, lazy loading) on the user experience of people landing on my website?</p>
  <p>I understand that it will effect TBT(Total Blocking Time), TTI(Time to interactive) but anyways it doesn't matter if my FID is ver less. is my understanding correct?</p>