Boot time protection setting default value. Please help

Hello!

 

Iam looking at the boot time protection setting. What is the default setting. My I set to off. I also have normal or aggressive to choose from. I was looking on this setting because it takes long time for the Nis icon to show. And I can see in process explorer that the process of NIS 2013 is not running before the icon shows. Maybe setting it to normal will make program launch faster after boot???????