You have just provided another reason why such programs are not as good as many produced by enthusiasts. In common with any commercial organisation, Norton exists to make money. Whereas, if you could find a true, competent enthusiast who produced similar software it would not be as bloated and would probably top the charts.
Unfortunately people have to eat and spending vast amounts of time producing something as complex as anti-malware software would leave all but those with an alternative form of income hungry.
If it were possible to convert a proportion of those who produce malware and encourage them to produce a good set of anti-virus software programs, not only would `we` be better off but they (hopefully) would be better people.
But alas ............