I have the full-blown AVG v8.0.93 (that I pay for, not a freebie) and it's slower than the full-blown v7.5 that I upgraded from (also a pay-for-it version, not the freebie), but MUCH faster than NIS, (which used to cause my PC to take 20 MINUTES to boot up - apparently it fought with Norton Ghost 10.0, how can you have confidence in a software company whose product even fight with one another??).

However, v8 is much more of a product than v7.5, looks better and is far easier to use and understand. There's a certain amount of 'fine-tuning' and 'tweaking' of things like scan frequency scheduling, update scheduling etc., but I have far more confidence in it than I ever had in NIS - as I said earlier, AVG found threats that NIS had missed when I first installed v7.5