For your reference, here are the troubleshooting methods:
1. For laptops, try plugging the dongle into a left-side USB port to avoid interference from the mouse's movement. For desktop PCs, try connecting the dongle to a front USB port of the main unit, which can offer better signal reception;
2. If the dongle is connected to a USB 3.0 hub, it will experience interference. Try plugging it directly into a USB port on the computer;
3. Keep the dongle away from devices that emit electromagnetic interference, such as routers, chargers, fans, and motors, to ensure a clear wireless signal;
4. Ensure that the desktop or mouse pad is clean and that there is no dust obstructing the lens on the bottom of the mouse for smoother movement.
If these steps do not resolve the issue, please contact the local after-sales service center for further assistance.