What should I do if the delay of the cloud host changes greatly?

1. First check whether the machine performance is full of cpu, high load, full bandwidth, exhausted memory, virus, and abnormal process.
2. Whether the same is true for other websites under local ping, and judge whether it is caused by local network instability.
3. If pinging other websites is normal, it is recommended that you contact the customer service and let the after-sales customer service help you to deal with it.