Got a laggy old Nexus 7? Here's why Android 4.3 will restore its performance.
Don't upgrade from an old Nexus 7(s goog) to a new one just yet; at least not if your reason for upgrading is because your current tablet has been getting slower over time. Try the Android 4.3 software update first, which is now in the process of rolling out to Nexus devices. It turns out there's a simple reason why the performance of some of the 2012 Nexus 7 tablets degraded and it can be fixed through software.