This makinnero thinks its a virus that may have attacked his pc without detection from Eset . But its not the case, It may have been some pua/pua's which may be slowing or slagging down his Pc, and he thinks it is a virus. But where as pup/pua's is concerned, they do not pose any threats to users although it slags the comp/browser. So many people who do not have much knowledge or expereince may think its a virus and blame Eset. I would simply recommend Eset to develop some kind of anti pup/pua's programme within eset which can detect all types of latest malware/pup/pu'a's/whatever it may be, so in-expereinced/old/small/expereinced(or whoever) user have no kind problem with anything or such kind of slow downs and pc slags.
Thanks..
