There is no question here, but I imagine a couple of questions:
is this normal ? if not, how to fix it ?
Also, there is not enough information to provide an accurate answer.
If this is related to an Exchange server running on a Windows 2003 server cluster, then this could help:
<a href=”http://support.microsoft.com/default.aspx?scid=kb;en-us;843546″>Increased CPU usage and poor performance may occur when Outlook Web Access uses an SSL connection to a Exchange Server 2003 computer in a cluster that is running Windows Server 2003</a>