Has the performance of your OG 2012 Nexus 7 seemed to be getting slower and slower over time? If you have experienced this, you are not alone. It was apparently an I/O issue which will likely be vastly improved with the new Android 4.3 update. According to the latest info, some lines of code have been found within Android 4.3 which will enable something in the background called TRIM. It's basically a new functionality which cleans up the internal memory on your device and dumps out all the old and unused files.
Sound off if you are one of the lucky folks who has received their Android 4.3 on your older Nexus 7 and let us know if it has helped your performance.