Why is my Samsung Galaxy S4 SO SLOW?

[Android Core]

either you have a defective.. seriously defective GS4 .......... or............. you have set it up with so much crud and bloatware that its even bogging down the CPU and RAM of a GS4............... or you lack propoer phone maintanence education.

reboot the phone. Work now? If not, get Watchdog, go to 3rd tab, and see what apps are killing your RAM. It should be at 10-30% usage and 90-70% idle.. maybe even as low as 60% idle...see what is chewing upi your RAM.... then edit the settings of that app.

if you have no idea what im takling about.... then just Factory reset it.... after it reboots itself, log into it again and download nothing or set up nothing... if it is still slow, get it replaced... if not, slowy installed your apps again.... still fast?... if yes, slowing setup your apps and widgets... keep doing this until you feel it getting slow again.. and see what app or setting you just did made it slow and uninstall that 1 stupid app.

It shouldnt be getting slow. I have no idea whats on or running on the phone. i can only guess.