Backup Exec 2014 from BUE2010; job rate dropped

I recently upgraded from Backup Exec 2010 R3 SP4 to Backup Exec 2014.

My job rate against a remote server (backing up the virtual machines) was 4500mb/min. Since installing Backup Exec 2014; it's dropped to 3500mb/min.

This has also reproduced on other jobs as well.

Has anyone experienced this problem also? Is there a solution?

Thanks