Access the camera separately through the web page, and in the configuration interface, select the image, display settings, exposure, exposure time, and set. [If there is no shutter menu, just adjust the exposure time]

The role of exposure time: adjust the sampling frequency of the sensor

Recommendation: In a scene with sufficient brightness, the smear can be appropriately reduced to improve the smear, and it is recommended to keep it at 1/25s for a scene with insufficient brightness.