This bug is being blown up slightly out of proportions tbh.
Slightly??? NO!
I am seeing in many IT articles and press reports all sorts of
highly exaggerated,
blown way out of proportion claims (or implications) those huge performance hits
will likely affect most users.
And sadly, I am seeing on many of the forums I visit daily, regulars totally believing and often parroting those exaggerated reports - (to include AMD fans piling on to say how great AMD is).
In other words, I was just trying to counter poor and unethical reporting by some bloggers and tech sites, and to set straight forum posters who believed those reports, and to put in check those who automatically parrot those reports without doing their homework.
IMO, the best and most common case for normal users is 0% (okay, ~0%) slowdown.
***
As for that Virus bulletin pointing out Microsoft has not stated which anti-virus programs are incompatible, see
this.