I'm not sure what's causing the high memory utilization, sometimes, the callconnector may try to access some network resources that could be blocked by firewall. Do you have a firewall running and if so, can you add the following to the exception rule:
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\TSSMgr.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\ccAutomationServer.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\CCTSCCSVR.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\CCTSDBSVR.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\ccSSS.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\ccSystemTracker.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\ccServerWizard.exe
c:\Program Files\cisco systems\Cisco Unified CallConnectorServer\ccPresenceServer.exe
Thanks,
Saurabh