Default Slow after tapping

just installed a theme on my S4
I Found that each time i tap to sms or phone or firefox anything, it take quite long to get into that app.. or even wont get into the app. as if the "hotspot" is not there...
any solutions?
and after placing the widget onto homescreen, do i need to select "widget ontap action" to Disable (locked), if not everytime i tab is go into editing mode.
Simplicity is Supreme.

Smartphones designed for humans???
I'm not a human to begin with!