thx
Where are you seeing this/these notification/s ?
I rarely see anything like this and I use Avast Free, I have a custom installation with the basic Shield components. Plus the WiFi Inspector, Software Updater and Do Not Disturb Mode.
Outside of the forums (ref questions) I don't run the Smart Scan where much of this comes from trying to push other Avast paid products. In fact I rarely if ever run on-demand scans of any kind, greatly depreciated in a resident on-access antivirus.
Spend a little time setting up avast and remove components you don't need or want and it will cut down some of the noise and make it lighter.