After install cloud flare, site speed goes down and dont support http 2

hi, i have vps server with nvme hard, 4 core cpu and 16 gig ram that located in germany. my site created with wordpress and have wprocket plugin. site is about travel agency (
in my country seo for selling tours and tickets is so hard competitions (god help me :slight_smile: )
99% of visitors are in my country.
in gtmetrix when i was testing most of the time all of pages speed was in 2.7 to 4 s
for better google seo and better speed and performance i set up cloud flare in free plan.
but after that unfortunately my speed goes down. it shows 4 to 7 s !!
after second check in gtmetrix it shows 3 to 4 (cause for cache) and for third test it shows 5 to 7 !!!
i set up cloud flare like wprocket walkthrough and cloudflare tutorial site.
http2 shows grayedout and i cand set it to http2

with this test : /cdn-cgi/trace.
uag=Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36

shows http 1 !!!

i checked my site with real devices (laptops and mobiles with different internet) and i feel it has low speed than previous)
would you pls guide me how can i fix these problems?

It looks like you made this request via http; while http/2 does not technically require tls, in practical terms it does.

The site seems to perform fairly well for me:


thx robert for answer. you right about made request via http. i did not know this test could be different via http vs https. in https test it is true (http2)
about test by webpagetest site i know it shows good but i mean before useing cloudflare i had this good situation (thx god) but now again i have exact those good degres. in another check in gtmetrix it shows 1 or 2 second slower that previous too. my problem is i use cloud for better situation. now i dont know my problem is about my server or for cloud?

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