When first time install internet security, it takes so long to update the virus database !!
why is that ? how much is the size for update ? some users are on dialup and will suffer to download this amount of data !!!
After installing and the first updates, it should be be a moderate improvement
It went from peaking at about a little over 6 million signatures down to “5785553” (8-25-09). 
That’s about a little over 200,000 signature reduction and it’ll keep getting better. I believe dial-up users and people with really really old computers are the ones that will be generally affected by this, but it’s still a good improvement then a month or 2 ago. It’s still better then some other AV’s out there