There are several other VPNs that you can customize the payload for if you find the server of Ha tunnel to be slow. Here are a few options:
1. HTTP Injector: This is a popular VPN app that allows you to create custom HTTP headers and use different types of payload for your VPN connection. It provides a user-friendly interface and supports various protocols like SSH, SSL, and more.
2. KPN Tunnel Revolution: Another powerful VPN app that allows you to customize the payload and create your own config files. It supports SSH, SSL, and HTTP tunneling and provides advanced features like DNS tunneling, IP route, and more.
3. Spark VPN: This VPN app also supports payload customization and provides a simple and intuitive interface for creating and managing your VPN connection. It supports TCP, UDP, and ICMP protocols and allows you to choose your preferred server and port.
4. Tweakware VPN: This app offers payload customization and supports various VPN protocols like HTTP, TCP, and UDP. It also provides options for DNS tunneling, IP route, and other advanced features.
5. Psiphon Pro: Although not primarily designed for payload customization, Psiphon Pro is a popular VPN app that allows you to choose different tunneling protocols and configure your VPN settings. It can be used in conjunction with other apps or methods to customize the payload.
Remember, always use VPN services responsibly and in compliance with the terms of service of the app or provider you choose. Additionally, be cautious when sharing personal information or engaging in activities that may violate local laws or regulations.