The phone undergoes rigorous professional inspection before leaving the factory, so you can use it with confidence. Ghosting of text when scrolling on OLED displays is a normal phenomenon. You can try manually adjusting the refresh rate to a custom 120Hz or adjusting the font to a finer setting to reduce this phenomenon.
Due to the temperature control strategy, some software is locked at 60Hz. Feedback can be attempted, and these APPs need to be adjusted to 120Hz.
To set the refresh rate, you can refer to the following steps:
Open the [Settings] APP >> [About phone] >> tap [OS version] 5 times in a row >> enter Developer options;
Go to [Settings] >> [Additional settings] >> [Developer options] >> turn on [Show refresh rate], and the refresh rate can be viewed at the upper left corner of the phone.