Samsung working extremely slow I unrooted my tab then did a factory reset, I then rooted my tab with Kingo Root, after rooting was successful my tab's performance became very slow. So I decided to boot into recovery mode then wipe data and cache. After that I noticed that the Samsung logo is slow. After booting my tab's performance is extremely slow, it takes time to go to the settings. So I went to look at CPU usage then I saw 98% of my RAM is being used. But the're only a few process on the list using a bit of RAM but they keep restarting. So I removed the root of my tab to see if that works, but it didn't.
After rebooting my tab it says "process system isn't responding"

Can anyone help me?
Ya one click root apps can have funny side effects like that. since you can root i'd assume your bootloader is unlocked id suggest you use a program called odin on your pc and flash Chain fires auto root https://autoroot.chainfire.eu/
first do a hard reset deleting everything from the device. then flash the appropriate version on your device. i've used chainfire for a long time with no issues. 

good luck