There are several ways to reduce the latency of overseas cloud servers:

1. Select the nearest server location: Selecting the server location closest to the target user can reduce network delay, thereby improving the access speed of the website or application.

2. Use CDN to accelerate: CDN (Content Distribution Network) can cache the static resources of websites or applications on nodes around the world. When users request access, the nearest node will be automatically selected for access, thereby reducing network delay.

3. Optimizing network protocols: Optimizing network protocols can reduce delays in data transmission, such as using TCP Fast Open or QUIC protocols.

4. Use accelerators or : Accelerators or  can speed up network transmission and reduce latency, but you need to choose a stable and secure service provider.

5. Optimize website or application code: optimize website or application code to reduce unnecessary requests and data transmission, which can improve access speed and reduce server load.

In short, reducing the latency of overseas cloud servers requires comprehensive consideration and optimization based on the actual situation. Choosing an appropriate method can effectively improve access speed and user experience.