Report Server (Page) refresh is slow

Good morning everyone,

I'm having a little problem.

When I first arrive on my report server (Power Bi Report Server) or refresh the page with the browser, the page takes about 15 seconds to load.

Once loaded, it's very reactive, and the same goes for the execution of the reports. However, the refresh or arrival on the report server is slow.

Do you have an idea of the problem?

Thank you in advance for your help,

Beautiful day,

Vivien