Cloudflare - slow down my website

Hello dear community members,

I am encountering an issue with Cloudflare.

My website, cinemastercard.az/en, performs very quickly when Cloudflare is turned off. However, when Cloudflare is activated, the performance slows down significantly.

Cinemastercard.az is a local cinema website. If you would like to investigate, simply select one of the movies and attempt to choose a seat in the cinema. The seat selection process is considerably delayed, taking approximately 10-15 seconds to load.

Additionally, I am unsure of what steps to take to address this issue. It’s possible that Cloudflare’s Web Application Firewall (WAF) is blocking something crucial. Do you have any ideas or suggestions regarding this issue? Any assistance would be greatly appreciated.

The process is very quick for me, perhaps clear cache & try again? I tried from an incognito tab in chrome.