SSRS 2012. ReportServer takes long time to be up.

SSRS 2012 Sp1

Hi guys,

I am using SSRS as my reporting platform, but I have always got the following issue.

SSRS ReportServer takes time to load.

The first time takes long, then less time but only if the ReprotServer web page is continuosly retrived.

HERE the problem:

If the ReprotServer page is not used after a short time (let me say 10 min), the page takes long time to be up again.

I have checked the configuration that is set as for default 12 hours.

Is there a way to speed up the ReportServer opening page time?

Thanks for your help