Dear Samsung Member,
Greetings from Samsung Customer Support!
We at Samsung understand your concern. Kindly follow the below mentioned step to improve the performance of the device:
For more information about hanging related issue, you can also follow below mentioned link: https://www.samsung.com/in/support/mobile-devices/how-to-restart-the-device-when-freezed-or-hanged/
If the issue still persist, register your concern in Samsung Members Application (Samsung Members App Get help> Feedback >Error report > Attach log file for any issue)
Thank you for writing to Samsung.
Samsung Customer Support