Unable to activate battery perfomance mode in Flyme UI 6.0

I need an answer how to fix it

Meizu m3s

do you have the security app in flyme ui 6.0??
do you have root??
if you have root you are able to download battery performance app from playstore
such as CPU tuner (Rooted phones)

yes i have the security app and i have rooted the phone.but is the security app the problem?

Meizu m3s

there is a performance setting in the security app. i was asking if you meant the security app not working.
by activating performance mode do you mean by enabling the performance governor for the cpu or something else?

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