On all three computers at my house, after upgrading, it takes forever to download things! Whether it's in Safari or the App Store, my downloads are a fraction of what they should be. I have a 15Mb connection, and if I go to speedtest.net I get the full speeds. But, for example, a 290MB download for pages that should take about 4 minutes is taking about 40 minutes. Any thoughts as to what might be causing this?