No cached content is deliver faster via clouflare than direct access

Hello, I use cloudflare for somes websites.
On one of them the NO cached content are delivered faster throught Cloudflare than throught direct access.
For exemple (350ms)
is faster than (650ms) is pointing (A and AAAA) to Cloudflare POP and is pointing (A and AAAA) to my dedicated server.

How come its possible ?