No longer using Identity-Safe & Anit-Spam - You?

Norton Identity-Safe became incompatible with FireFox so often...  I stopped using Identity-Safe and switched to another password-manager.   

Then recently my Microsoft Outlook starting timing-out when attempting to connect to my email server.  Worked with my internet-provider/email-provider... Troubleshooting determined the timeouts were from my end.  Many test-runs with the Anti-Spam on/off... Determined Norton Anti-Spam was the root-cause of the problem.  As a result... I removed Anti-Spam from Outlook.

I suspect I may get a response such as... Because Norton security is so complex... Response time is diminished.

Others experiences and opinions? 

Suggestions for other vendor products?