is avast resident shield v6 more fast then 5 ?
I don't think there were any optimizations of speed. The scanning itself is exactly the same (because the engine - virus database - is identical).
Whether there are some additional operations connected to the improvements in Behavior Shield or AutoSandbox... can be, though it's hard to say what effect it might have. So avast! 6 resident protection probably won't be faster... and yes, it's possible that it might be a bit slowed; that comes with the protection. (Just as well as the general scanning gets slightly slower in time, due to virus database growing - no matter what program version you have).
by the way it's not explicit but..
The fastest antivirus –
now leaner and meaner
AV-Comparatives.org rated avast! antivirus as the fastest solution for Windows. New version 6.0 brings even stronger technologies, in an even smaller packag
Even if we take the marketing talk seriously

- that doesn't compare the speed of avast! 5 and 6 in any way.