There are some of the things that I do when I use Norton.
On Administrative Settings
, I turn off/disable,
Idle Time Optimizer.
This feature Defrags your system drive. But there have been reports from users that Norton even defrags SSDs when what it should do is, Trim. So it's advisable to disable it and enable Windows's own defragment feature which Norton turns off when it gets installed.
Norton Task Notification.
I had situations where I was watching a movie but there was a notification from Norton that it has started a quick scan which may happen when the device has been idle for 10 mins.
Special Offer Notification.
Firefox Temporary File Cleanup.
Don't know why they have this feature there.
Set Boot Time Protection and Behavioral Protection Advanced Mode to Aggressive.
On Task Scheduling
I disable everything and set Scheduling to Manual Schedule.
On Backup Settings
I disable Backup as I already have my important files backed up elsewhere.