If your phone is running slow, experiencing lag, or freezing, it might be due to having too many installed apps or simply too many apps open. You can close some to free up RAM.
To disable multitasking on Samsung Galaxy J1 2016, you can follow these steps:
Step 1: Tap the multitasking button.

Step 2: Choose 'X' to close each application individually or select 'close all'.

Wishing you all success.
