Since Sunday morning I use CloudFlare for this web hosting company : https://grape-hosting.com/
I enable full page caching for each page except for page with dynamic content (user panel, etc.)
All works perfectly good as usual, except that one page (the homepage), take a very long time to load.
We are using CloudFlare cause this Web Hosting company use WHMCS which is natively slow (all pages were loaded in 15-20sec).
All the pages now load in 1-5sec, but the homepage (https://grape-hosting.com) always takes 20 seconds to be loaded (like if it the origin server was yet requested each time).
I activate the Browser Insights, and I join you the picture that show that there is a real problem with the homepage (the third line of analytics picture).
Thanks in advance for your help,