To activate the standard fast charge feature on a Huawei phone, first make sure your phone supports the feature. Then, use the original Huawei fast charger and data cable to charge.
Make sure the charger and data cable interfaces are clean and dust-free, and properly connected to the phone and power outlet.
During the charging process, the fast charging icon will be displayed on the phone screen, indicating that the fast charging function has been activated. If the fast charge icon is not displayed, try replacing the charger and cable, or check the charging options in your phone's Settings.
Also, make sure the phone software is the latest version, as Huawei may improve the fast charge function through software updates.