How to Speed Up Your VPN
Practical fixes for slow VPN speeds, high latency and unstable connections.
Quick fixes for a slow VPN
Most VPN speed issues are caused by server distance, protocol choice, poor Wi-Fi, overcrowded servers or local device limits. Start with these checks before changing provider.
- Choose a nearby VPN server when you do not need a specific country for streaming, pricing or location access.
- Use WireGuard, NordLynx or Lightway where available. If you need OpenVPN, try UDP before TCP.
- Test your base connection without the VPN so you know whether the slowdown is caused by the VPN or your broadband/Wi-Fi.
- Use Ethernet where possible, especially for gaming, 4K streaming or large downloads.
- Enable split tunnelling for apps that do not need VPN protection, such as game launchers or routine software updates.
A VPN will usually add some overhead because your traffic is encrypted and sent through an extra server. That does not mean it should feel unusable. A well-configured VPN connection should still be quick enough for everyday browsing, HD or 4K streaming, video calls and secure public Wi-Fi use.
This guide explains how to speed up a VPN connection without weakening your privacy. The aim is to reduce latency, avoid packet loss, pick the right VPN protocol and spot when a provider is the real bottleneck.
Why VPN location affects speed
VPN speed is strongly affected by distance. If you are in London and connect to a VPN server in Sydney, each request has to travel far further than it would through a UK or nearby European server. That extra round trip increases latency, which is especially noticeable in gaming, video calls and live streaming.
Best practice: choose the nearest reliable server unless you need a specific country. For general privacy, a UK server is usually the fastest option for UK users. For European content, try a nearby city such as Paris, Amsterdam, Dublin or Frankfurt rather than a long-distance location.
Server load matters too. If the nearest server is congested, a slightly more distant but less busy server may perform better. Most good VPN apps show server load or automatically recommend a fast location.
Best VPN protocols for speed
Your VPN protocol controls how your device creates and maintains the encrypted tunnel. Modern protocols are generally faster and lighter than older options, although the best choice depends on your network, device and VPN provider.
| Protocol | Strengths | Trade-offs | Best use |
|---|---|---|---|
| WireGuard | Lightweight, modern and typically very fast, with a compact codebase that is easier to audit. | Some VPN providers add their own privacy layer or implementation details, so performance varies by app. | First choice for most users who want faster VPN speeds. |
| NordLynx / Lightway | Provider-specific protocols designed for speed, reliability and quick reconnection. | Available only in the relevant VPN apps, so you cannot use them with every provider. | Worth trying when your VPN app offers them. |
| OpenVPN UDP | Mature, widely supported and often faster than OpenVPN TCP. | Can be blocked on restrictive networks and may be slower than WireGuard-based options. | Good fallback when WireGuard is unavailable or unstable. |
| OpenVPN TCP | Reliable on networks that block or interfere with UDP traffic. | Usually slower because TCP can add extra retransmission and congestion handling. | Use only when UDP-based protocols fail or when bypassing restrictive firewalls. |
| IKEv2/IPsec | Good at reconnecting when switching between Wi-Fi and mobile data, especially on phones. | May be blocked by some networks and is not always the fastest option in consumer VPN apps. | Useful for mobile users who move between networks often. |
If your VPN app is set to Automatic and feels slow, manually test WireGuard, NordLynx or Lightway first. If those are unavailable, try OpenVPN UDP before OpenVPN TCP. Restart the VPN app after changing protocol and run the same speed test again for a fair comparison.
Device, router and Wi-Fi bottlenecks
Split tunnelling
Split tunnelling lets selected apps bypass the VPN while the rest of your traffic stays protected. It can improve performance when one app is using a large amount of bandwidth but does not need VPN protection. Common examples include game downloads, cloud backups, software updates and local streaming devices.
Use this carefully. Anything excluded from the VPN will use your normal internet connection, so keep privacy-sensitive apps inside the tunnel.
Wi-Fi and packet loss
Weak Wi-Fi can make a VPN feel much slower than it really is. Interference, distance from the router and crowded channels can all cause packet loss. When packets are lost, your device has to request them again, which increases delay and makes video calls, gaming and streaming less stable.
For the best VPN performance, test with an Ethernet cable. If Ethernet fixes the issue, improve your Wi-Fi setup by moving closer to the router, using the 5 GHz or 6 GHz band where available, reducing interference, or upgrading older router hardware.
Router and device performance
VPN encryption uses processing power. Older phones, budget laptops and low-powered routers can struggle with high-speed VPN traffic, particularly if the VPN runs directly on the router. If your VPN is slow on one device but fast on another, the device itself may be the limiting factor.
DNS settings and page load delays
DNS does not usually change your raw download speed, but it can affect how quickly websites start loading. DNS translates a domain name, such as a website address, into the IP address your browser needs to connect.
Many VPNs use their own DNS servers to reduce leak risk. That is usually the safest option. If your VPN app allows custom DNS and you are confident it will not create DNS leaks, you can test reputable public resolvers such as Cloudflare 1.1.1.1 or Quad9 9.9.9.9. After changing DNS, run a DNS leak test and confirm requests still go where you expect.
If privacy is your main reason for using a VPN, do not override the provider's DNS unless you understand the trade-off. A faster resolver is not worth exposing browsing requests outside the VPN tunnel.
MTU troubleshooting for unstable VPNs
Maximum Transmission Unit (MTU) is the largest packet size your device can send over a network path. VPN encryption adds extra header data. If packets become too large for the path, they may be fragmented or dropped, causing slow page loads, lag, failed uploads or a connection that feels inconsistent rather than simply slow.
Many VPN apps handle MTU automatically. If yours allows manual changes and you are seeing jitter or broken websites, try lowering MTU gradually, for example to 1400. If problems continue, test 1380 or 1300, then keep the highest value that works reliably. Avoid changing MTU unless you have a clear stability issue, as the wrong value can reduce performance.
When to change VPN provider
If you have tested nearby servers, changed protocol, checked your base connection and ruled out Wi-Fi issues, the provider may be the bottleneck. This is more common with overloaded free VPNs, small server networks and services that do not publish clear information about server capacity.
Check server capacity and real-world performance
Some low-cost VPNs now offer fast servers and strong everyday performance, but price alone does not tell you how well a service will handle congestion. Look for recent speed testing, a clear server network, good UK and European coverage, and support for modern protocols such as WireGuard.
Compare like for like
Before switching, run the same test on the same device, at the same time of day, using the same server region and protocol where possible. If your current VPN still performs badly, compare the latest VPN reviews and focus on providers that publish transparent speed, privacy and server information.
Frequently asked questions
Does a VPN always slow down the internet?
Usually, yes, at least slightly. A VPN adds encryption and routes traffic through an extra server, so some overhead is normal. With a nearby server, a modern protocol and a good provider, the difference may be small enough that you barely notice it.
Can a VPN make my connection faster?
Sometimes. A VPN can improve performance if your ISP is throttling or routing certain traffic poorly. In most cases, however, a VPN improves privacy rather than raw speed, so it is better to treat any speed increase as a useful exception rather than a guarantee.
Which VPN protocol is fastest?
WireGuard and WireGuard-based options such as NordLynx are often the fastest choices in consumer VPN apps. ExpressVPN's Lightway is also designed for fast, reliable connections. OpenVPN UDP is a good fallback, while OpenVPN TCP is usually best reserved for restrictive networks.
Is 5G faster than Wi-Fi for VPNs?
It depends. A strong 5G signal can be faster than poor home Wi-Fi or older broadband, but it can also be less stable. For the most reliable VPN connection at home, a good fibre connection over Ethernet is usually better than relying on a fluctuating mobile signal.
Why is my VPN fast for downloads but slow for websites?
That can point to DNS delays, packet loss or high latency rather than low bandwidth. Try a nearer server, test another protocol, check your Wi-Fi signal and review DNS settings inside your VPN app.
Expert review
Martin Needs
Director at NeedSec LTD, Cybersecurity Expert and Lead Technical Auditor for FindCheapVPNs.
From a network testing perspective, the most common causes of poor VPN performance are avoidable: long-distance routing, overloaded servers, weak Wi-Fi, packet loss and protocol choice. WireGuard is a sensible first protocol to test because its lean design generally reduces overhead, but MTU and local network stability still matter when diagnosing real-world speed issues.
This information is for general educational purposes. VPN speeds vary by provider, server location, device, router, ISP, Wi-Fi quality and local infrastructure.