Performance dropping is more complex than the software blocking issue. For initial troubleshooting, the following can be done:

1. Identify the Process that has a high CPU and/or Memory usage.
    

   If the actual process is not available due to security restrictions, the name of the application would also apply.

    
2. Ensure that the application and the Apex One / Worry-free agent are running on the latest patches.
3. Record the time encountered the performance issue and if the Trend Micro Behavior Monitoring and/or Device Control is present.
4. Add the said processes to the Behavior Monitoring Exception List, then verify if the issue perissts.

If the issue persists, proceed to the following steps:

1. Isolate the machine for further investigation and attempt to perform the following:
   • Run the Case Diagnostic Tool on the machine to capture all necessary logs needed for further analysis. Ensure that the debugging mode is on:
     • Test the application when Behavior Monitoring is up and running.
   • Stop the debugging mode, then collect the captured log for this test. Disable the Behavior Monitoring feature then reboot the machine. Re-run the CDT tool and perform the test:
     • Test the application when Behavior Monitoring is disabled temporarily.
2. Compile the CDT logging, then re-enable the Behavior Monitoring afterward.
3. By this time, there should be two sets of CDT Logs:
   • BM Feature is running (CDT 1)
   • BM feature is disabled (CDT 2)
4. Create a support ticket by reaching Trend Micro Technical Support.