What is wrong with my tablet?

[Bob]

Here is a list of things that should fix it...
1.) download clean master
It will free up ram, close apps running in the background, delete
unnecessary folders, etc.
2.) download an antivirus
I use avast which seems to work. You could possibly have a
virus from a visited site.
3.) go to settings, apps, running
Here you can see the things that run in he background that
could be affecting app usage
4.) check for an update
5.) if all else fails, you may need to reset the tablet
Good luck!