Using nokia 3 since 30 days and updated to 7.1.1 presently i am facing issues like slow operation switching from one app to other, slow operation of facebook app and several apps. The operating is not as fast as it should be. Sometimes the apps dont work and close automatically. As I have only few apps on the device but it operates very slOw
Try to disable all applications you don't use.
Regarding Facebook lag, we see that this application was initially only 15Mb,but now occupied over 300Mb and is doing the same thing...It seems that the advertising on Facebook kills our memory space . It's a Facebook rush for Money!!