My camera manual says, "When using a tripod, please set the damping to off". Why?

Your machine has optical anti-shake function. Optical anti-shake is to use magnetic force to wrap the suspended lens and calculate the position compensation in the case of shaking to overcome the shaking when holding. However, after turning on anti-shake, the lens is suspended, which may not be 100% static, and may produce little vibration, which may affect the image quality. Therefore, in the case that the camera can completely avoid vibration, turning off this function can ensure that the image is clearer. If you use a tripod, you can delay shooting for 3 seconds in the machine selfie, and some cameras are 2 or 4 seconds, which can ensure that the image is clearer.