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Connection & speed

Check whether stutter comes from your device

Each device emulates its own console. Power saving and competing applications can interrupt frames despite a fast connection.

Joybito team

What to do

  1. Try solo with the same file.
  2. Close heavy tabs and applications.
  3. Compare on external power with ordinary performance settings.
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Technical references

Related guides

Connection & speed

Reduce lag in browser NES multiplayer

Responsiveness depends on both devices and the network route. Direct WebRTC and server relay can take different paths.

Connection & speed

Wi-Fi or Ethernet for NES online?

Stable packet delivery matters more than headline download speed. Busy Wi-Fi can cause varying latency despite a fast speed test.

Connection & speed

What do P2P and relay mean?

P2P sends game messages directly between browsers. Relay routes them through the room server when direct traffic fails or stalls.

Connection & speed

Troubleshoot NES multiplayer with a VPN

A VPN changes routes and may affect browser connections. It can help or hurt a specific connection; speed improvements are not guaranteed.

Connection & speed

Room connects but gameplay stalls

Room membership uses WebSocket; direct gameplay can use WebRTC. A managed network may allow one connection type and restrict another.

Connection & speed

Why does the NES site need HTTPS?

Gamepad access and Web Crypto depend on secure-context rules. Public deployment should use HTTPS and secure WebSocket connections.