Android offers a convenient place for you to find out just exactly which apps have gone rogue and may be draining too many system resources.
First, go to Settings > Memory. Use the handy, slide-out menu in Nougat’s settings to get there.
Then you’ll see the Memory section. Toggle the time to choose between 3, 6, 12 hours or one day for a better perspective on the data.
Next, select memory used by apps. You’ll see a list of apps, the OS, and system services along with their reported RAM usage. You can use the toggle at the top right to sort these by average or max use.
Touch an app or resource to get more details.
The overflow button at the top right can be used to disable the app if it’s become too much of a drain on system resources.
If you’ve been having problems with your phone, it could be that a single app is messing everything up. This can help you identify the culprit. Otherwise, it may be worth uninstalling the app entirely or investigating other methods to speed up your phone.