I am getting extremely fast

I am getting extremely fast pagespeed results but failing my Core Web Vital. When i test over a prolonged ping report i find that over time my site has a slow server response time, adding a couple of extra seconds to load

My website, ArmorThane.com consistently achieves high scores (ranging from 99-100 percent) in speed tests conducted on each page. However, my core web vitals indicate a failure with regards to Largest Contentful Paint (LCP) measurements, as all pages exhibit LCP times exceeding 4 seconds. Further investigation revealed that, over time, my pages experience extended server response times, as detected through a ping service evaluation of the entire website.

How does this relate to Turnstile?