I don't know if this was already explained, but if your iPhone 6 or 6 Plus has WIFI that is running slower than a pregnant turtle, this is exactly what you need to do: Goto Privacy > Location Services > System Services...Turn off the following: -Location-based Alerts -Location-based iAds -Share my Location Spotlight Suggestions Wi-Fi Networking -Frequent Locations Whenever you made a query online through Google or whatever, while running your search, Apple is runningthere own query's on your search's to provide better ads for you. My iPhone 6 Plus went from beyond slow to lightning fast in a matter of seconds. LET ME KNOW IF YOU STILL HAVE SLOWNESS ISSUES AFTER DOING THIS. THANKS???