DNS Server Issue and Speed issue

I am facing a critical issue with my site due to servers and speed is low too. Can you inform me about what are ways I should use to improve. Here is my site link to check and analyze accordingly.

Hello,

https://support.cloudflare.com/hc/en-us/articles/200172856-Troubleshooting-and-optimizing-site-speed

As far as I have opened your website, I can confirm I do not see a critical issue regarding to the speed of loading your website.

Your Website responds correctly.

Or there is some other issue “speed” because you are using Spectrum?