SNMP monitoring rails CPU OS X Server 10.4.7

I've just recently setup snmp (v5.2.1) on an ODM running 10.4.7 Server and have asked our monitoring team to monitor drives/cpus and memory. They use Orion Enterprise 8.5.1(SP3) to do this. Setup was a breeze using snmpconf and some help from Andrina, however, when Orion is set to monitor the Xserve, it rails the CPU to 99% and I have to ask them to pull the monitoring. Me polling the Xserve using snmpwalk spikes the CPU to 50% but it correctly drops back down once the polling is done. A few months ago the thwack forums had a thread on this very issue, but it was happening on Windows 2003 servers too, and solarwinds provided a patch, which has been installed on our Orion server. The problem still persists on our Xserve. Has anyone else had this experience and found a way out?