Muzi,
This issue sound very similar to cases we had at other sites.
Performance enhancements may be added to the Connector Server to avoid these challenges.
There is a section about anti-virus scanning in the connector guideline.
Performance Tuning for Provisioning
The section mentioned provisioning when the IMPS component was installed on MS Windows.
You can treat the JCS/CCS on MS Windows to be in this mode.
Refine the exclusions to the installation folder for the JCS and the embedded CCS service.
Focus on Antivirus Exclusions (Windows only)
On all the Connector/Provisioning Servers, ensure that the antivirus will not scan the following directories and processes.
Folders
<CA_IdentityManager_Install_DIR>\Connector Server\jcs\logs
<CA_IdentityManager_Install_DIR>\Connector Server\ccs\logs
Processes:
<CA_IdentityManager_Install_DIR>\Connector Server\ccs\bin\im_ccs.exe
<CA_IdentityManager_Install_DIR>\Connector Server\bin\jcs.exe
Good luck.