Since disabling Avira's webguard (Avira Antivir Premium), I notice browsing is remarkably faster. Because I have an 6 years old computer, Pentium 4, every speedup is welcome. My other resident scanner is Prevx 3. Do you think disabling Avira's webguard, combined with the heuristics of Prevx 3 is a safe practice? Thanks for any reactions.