Why is my ZTE Obsidian family mobile phone keep optimizing?

[AC Question]

why is my zte obsidian family mobile phone keep optimizing

my phone optimizes on its on. i do not have an app downloaded for this. It just started doing this a week ago. how do i get it to stop

 

[B. Diddy]

Welcome to Android Central! Where do you see that it's optimizing? Is it optimizing apps, memory, battery?