Problem with notifications on Android...?

[Freddy]

I have a Galaxy S4 with the Android 4.3 update, but the problem has been going on before the 4.3 update while I had 4.2.2. I keep receiving live notifications late on applications such as Twitter, Snapchat, Instagram, etc... I would get a notification of a new snap on my phone, but when I go to the app, it says that I actually received the snap about 20 or more minutes ago. Same with Twitter and other downloaded apps. Please help me fix this irritating problem.

[Utkarsh Isback]

official update to android 4.3 for s4 here:

http://supper-android.blogspot.in/2013/1...-with.html

more galaxy s4 here:
http://supper-android.blogspot.in/search...alaxy%20S4