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Low Speed When Using AmneziaWG ​

Why AmneziaWG May Be Slower Than Regular WireGuard ​

AmneziaWG is a modern version of the popular WireGuard VPN protocol. It is a fork of WireGuard that offers protection against Deep Packet Inspection (DPI) systems while maintaining the simplified architecture and high performance of the original protocol.

AmneziaWG Features ​

The main feature of AmneziaWG is its ability to mask traffic as regular internet traffic. This is achieved through:

  1. Modification of all packet headers:
  • Initiator to Responder
  • Responder to Initiator
  • Data packets
  • Special "Under Load" packets
  1. Changes to authentication packet sizes:
  • Adding random bytes to each authentication packet
  • Modifying handshake packet sizes using S1 and S2 parameters
  1. Additional masking:
  • Sending "junk" packets before session start
  • Configurable parameters for the number and size of these packets (Jc, Jmin, Jmax)

Reasons for Speed Reduction ​

The speed reduction when using AmneziaWG compared to regular WireGuard is due to several factors:

  1. Additional packet processing: Each packet requires additional processing for traffic masking, which increases latency.

  2. Increased packet size: Adding "junk" data and header modification increases the size of transmitted packets.

  3. Routing complexity: Unique headers for each user create additional load on the network infrastructure.

  4. Network infrastructure features: Modern networks use complex routing and traffic processing systems that may react differently to non-standard protocols. This can lead to additional delays in data transmission.

Why the Problem Cannot Be Resolved ​

At the current moment, it is impossible to completely eliminate the speed reduction for the following reasons:

  1. Security vs. speed trade-off: The main function of AmneziaWG is protection against DPI system detection, which requires additional traffic processing.

  2. Technical limitations: Protocol modification for traffic masking inevitably introduces additional delays.

  3. Network infrastructure: Protocol features may conflict with some network settings and protection systems.

Optimization Recommendations ​

While it's impossible to completely eliminate the speed reduction, you can take the following steps to improve performance:

  1. Use servers with minimal latency
  2. Optimize network settings
  3. Optimize VPN settings (MTU, packet sizes, and other settings)
  4. Choose a server with higher bandwidth
  5. Use a stable internet connection

Conclusion ​

AmneziaWG offers a unique balance between security and performance. While it may be slower than regular WireGuard, this is a consequence of its main function - protection against detection. At the current moment, it is impossible to completely eliminate this speed reduction.