Initial server response time from Georgia

Hello, I am on Cloudflare Pro plan, my website is https://aray.ge/, and I am using Amazon as hosting.

Recently I started receiving low Performance score in Google Lighthouse. Current is 76 from my browser. Nevertheless, the score from Page insights is 96. Our clients are from Georgia (Country), therefore the “real users are experience” is non-satisfactory as well. The main error difference between Lighthouse and Page Insights is “Reduce initial server response time Root document took 3,110 ms”.

A month back it was ok, I used to receive 90+ performance score in lighthouse. After the problem accrued, I tried using Argo with no success.

What can I do to improve the Performance? Thanks to everyone is advance for the replies.