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VPNAdvisor

Why Is My VPN Slow? (UK Fix Guide)

Troubleshooting 5 min read Updated 3 September 2025

Why Is My VPN Slow? (UK Fix Guide)

A slow VPN is frustrating, but it is almost always fixable. In most cases a few quick changes restore full speed. Work through the steps below in order.

1. Change your VPN protocol

The single biggest factor is your protocol. Switch to WireGuard (called NordLynx on NordVPN or Lightway on ExpressVPN) in your app's settings. It is dramatically faster than older protocols like OpenVPN.

2. Connect to a nearer server

The further your data travels, the slower it gets. If you do not need a specific country, connect to a UK or nearby European server. For streaming US content, pick a US east-coast server rather than the west coast.

3. Avoid overloaded servers

A server crowded with users will be slow. Many apps show server load — choose one under 50%. Failing that, simply try a different server in the same country.

4. Check your base internet speed

Disconnect the VPN and run a speed test. A VPN cannot make your connection faster than your underlying broadband. If your base speed is low, that is the real bottleneck — contact your ISP.

5. Use a wired connection

Wi-Fi, especially on the 2.4GHz band, can throttle speeds. A wired Ethernet connection, or moving closer to your router, often helps considerably.

6. Rule out throttling

Some UK ISPs throttle certain traffic. Ironically, a VPN can fix this by hiding your activity — if you are faster with the VPN on for streaming, throttling was the cause.

7. Restart everything

The classic fix that genuinely works: restart the VPN app, then your router. This clears temporary glitches that build up over time.

Still slow?

If none of the above helps, your VPN itself may simply be underpowered. The providers on our best VPNs list are chosen partly for their speed — switching to a faster one is sometimes the real answer.

A quality VPN on the WireGuard protocol should cost you only a small fraction of your normal speed. Large, persistent slowdowns usually point to the server choice or your base connection, not the VPN itself.