Why so many "apps not responding"

[Android Central Question]

Just purchased a fusion 5 tablet 7.0 , immediately having issues pop up saying UI not responding, utube not responding, google not responding, etc...all whilst try to play a downloaded game. I've tried clearing cashe, resetting the permissions, uninstalling certain apps, no relief! Very irritating please help

 

[B. Diddy]

Welcome to Android Central! Was this a brand new device, or was it used/refurbished? Was the game installed from the Play Store or some other source?