Check your background apps running maybe you want to stop some apps being used in background.... if this doesn't help factory reset your phone but ensure you backup before you proceed... please accept this as a solution
We acknowledged your query and would request you to kindly perform the following steps to resolve your issue.
Kindly check the RAM in your device: Path: Settings > Battery and device Care > Memory The device's RAM should be free to improve performance. So clear the RAM memory once a day
Clear app cache through Device care: Settings > Device care > Storage > CLEAN NOW.
Note: To delete files or uninstall apps that you do not use anymore, select a category under USER DATA. Then, tick items to select and tap DELETE or UNINSTALL.
The clear cache memory of a particular application: Settings > Apps > Now pick the app that you like to clear off the cache memory > Storage > Clear Cache.
Close Background Apps
Is there any unnecessary application running in the background? Too many applications running in the background may cause the device to hang. Kindly close the background running applications in the device (''Tap the left side key & close the background running application'').
In case the issue still occurs. Please visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/
