I've always been aware of it but only in the last few days started to question it. When I start-up my Mac, Safari opens automatically to Google's homepage. When I then put in another site, it'll hang for about 5secs then slowly load the page (taking perhaps another 5secs). As I click links/navigate to other sites, Safari will get quicker until, after a couple of minutes, it's lightening fast. Does everyone's do this?