It seems like no matter what mac I use, whether it be at my house or the apple store, Safari seems to be pretty slow at loading webpages. At the applestore, when I go to a webpage for the first time, the loading bar seems to stall for a second or two and then finally loads. The stall is less present if the page has been loaded before within the same browsing session. Any reason or fix behind this? I really want to use Safari for the improved battery performance but don't want to make any performance sacrifices.