Kloudflare api response taking more time

I have deployed Kubernetes on Vuter and Using Cloudflared to expose a Kubernetes to the Internet.

When I call the API through Kubernetes IP it’s taking 20-30ms response time.
But after configured with Cloudflare it’s taking 400-500ms almost 20x more. I tested with DNS and load balance both taking same time.

Can you please help how to improve the performance of API through Cloudflare.