While using the Galaxy A30, adjustment of screen brightness is slow and somehow unnatural compared to other devices.
The Galaxy A30 device uses the front camera sensor, not the light sensor, to adjust the screen brightness of the device.
Accordingly, as the device checks the screen brightness periodically depending on the camera sensor, adjustment of brightness may be slower than thelight sensor.
Samsung is scheduled to release new software that will support an improved brightness adjustment feature for the best user experience. Therefore, please check for updates to your device SW regularly via the Smart Switch PC or FOTA.