High first byte time "F"

https://www.webpagetest.org/performance_optimization.php?test=180613_XV_9a76c6f6a9827acf47848ee5a14114ad&run=3#first_byte_time

I hired many developpers to optimize my website. But I still get F for first byte time

WHat can I do to get all "A"s

My host is futurehosting.com , I believe it is reputable…

I believe you need to get under 500ms to get a good rate. If you are on a shared hosting I believe this is quite not possible to achieve. Database optimization towards your server is one thing that can improve it, but shared servers don’t allow that. CDN and page cache can improve as well.

I wouldn’t worry about that in your case. What I would be fixing if I were in your shoes is the 10 second load time.