Zone Alarm causes considerable CPU load on mashines with heavy traffic

Reacently I was updating my local Gene Ontology database for MySQL. Using a little java applet wich was updating the local references wich accesses the MySQL server via networkport on the localhost I realized that vsmon.exe an integral part of zone alarm was constantly draing 33% of CPU power as assesd by task manager.
This was probably a result of zone alarm monitoring the heavy network traffic on the local mashine caused by the requests of the softwareagent to the MySQL server on the local mashine.
Shutting down the zone alarm agent dereased the processing time for the databaseupdate considerably and the computer became usable again. Before it was frozen due to the heavy CPU load.