Using docker to arrange the VPN of shadowsocks on digitalocean feels very slow. How can it be optimized?

  docker, question

1.digitalocean uses docker to arrange the VPN of shadowsocks, which feels very slow.
2. There is no problem in opening web pages during the day. The web pages on the web cannot be opened. Although the server in San Francisco has time difference problems, the web pages on the web cannot be opened. How can it be optimized?

The problem with trying out the mobile phone network is usually your isp.