The first thing that I had a problem with was when I unrooted and left busybox installed. When I did a factory data reset, the device became so laggy and almost unusable. I I could not root my device for some reason. To fix this, just simply reflash the stock room using odin. After I fixed this, I upgraded to Kit-kat and looked for a custom recovery to install. I went for clockwormod and found my self getting stuck in a cwm bootloop. To fix this, download the latest version of TWRP and install via odin. I strongly recomend to use TWRP as it does not go into a recovery bootloop unlike CWM. Now for Xposed I noticed that the boot up is way slower then before. A simple install of the module boot manager can help.
That's it. I hope I can help some new users with problems on the galaxt tab 3. If you have any other problems, just let me know and I'll do my best to help.
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