Slow show folders

Hi,

I have a problem when I configure a job on remote server. When I run for configure backup to disk, is very slow when show my folders, files, units... about 15 minutes!

How to configure my Backup Exec to go faster?

My backup server is Windows Server 2008 R2 with Backup Exec 2012 SP2, and my remote server is a Windows Server 2012.

Thanks for all