How to Fix Proton VPN Slow Speeds in 2026
Proton VPN is known for privacy features, Secure Core routing, and strong leak protection, but speed can drop for several technical reasons.
This guide explains how to fix Proton VPN slow connections with targeted changes that improve throughput, latency, and stability.
Why Proton VPN Can Feel Slow
VPN performance depends on distance, encryption overhead, server load, and the quality of your local network.
Proton VPN can also slow down if you are connected to a crowded server, using a high-security route like Secure Core, or routing traffic through a faraway region.
- Physical distance: The farther the server, the higher the latency.
- Server congestion: Popular servers can become overloaded during peak hours.
- Protocol choice: Some tunneling protocols are faster than others depending on your device and network.
- Local bandwidth limits: Your ISP, Wi-Fi signal, or router may be the bottleneck.
- Background traffic: Cloud backups, streaming, and updates can consume available bandwidth.
Choose the Fastest Proton VPN Server
The quickest fix is often to switch servers.
Open the Proton VPN app and connect to a server that is geographically close to you, ideally in the same country or nearby region.
Shorter routes usually reduce latency and improve download speeds.
If you are already using a nearby server, try a different city or server within the same country.
Even servers in the same region can vary widely in load and performance.
- Use the Quick Connect option to let Proton VPN select a recommended server.
- Manually test multiple servers in your preferred country.
- Avoid heavily loaded servers if the app shows load information.
Switch to a Faster Protocol
VPN protocols affect speed, stability, and battery usage.
Proton VPN supports several protocols, and some are faster than others for everyday browsing and streaming.
In many cases, WireGuard delivers the best balance of speed and security.
Which protocol should you try first?
- WireGuard: Usually the fastest option on modern devices.
- OpenVPN UDP: Often faster than TCP and better for general use.
- OpenVPN TCP: More reliable on restrictive networks, but often slower.
- Stealth: Helpful on networks that block VPN traffic, but speed may decrease.
If your current protocol is not performing well, switch to WireGuard first, then test OpenVPN UDP if needed.
On mobile devices and laptops, a protocol change alone can make a noticeable difference.
Turn Off Secure Core When You Do Not Need It
Secure Core routes traffic through extra privacy-protected servers before reaching the final exit server.
This can be valuable in high-risk scenarios, but the extra hop adds latency and can reduce download speed.
If your goal is streaming, gaming, or large file transfers, disable Secure Core and connect directly to a standard server.
Keep Secure Core for situations where additional anonymity is more important than raw speed.
Check for Connection Features That Add Overhead
Some privacy and safety settings can affect performance, especially on slower networks or older hardware.
Review the features enabled in the Proton VPN app and test each one individually if speeds are poor.
- Ad blockers or content filters: Can add processing overhead.
- Anti-censorship modes: Useful in restrictive networks, but typically slower.
- Auto-connect settings: May connect you to a less optimal server when the app starts.
Disable nonessential features temporarily and retest your speed after each change.
This helps isolate the exact cause of the slowdown.
Improve Your Local Network First
Sometimes the VPN is not the real problem.
If your base internet connection is unstable, Proton VPN cannot fully compensate for weak Wi-Fi, congested home networks, or ISP throttling.
- Restart your modem and router.
- Move closer to your Wi-Fi access point.
- Test with Ethernet instead of Wi-Fi if possible.
- Pause downloads, game updates, and cloud sync apps.
- Run a speed test without the VPN, then compare results with the VPN enabled.
For accurate troubleshooting, test speeds on both a wired and wireless connection.
If Ethernet is much faster, the bottleneck is likely your Wi-Fi environment rather than Proton VPN.
Update the App and Your Device
Outdated VPN clients can cause performance problems, especially after operating system updates.
Make sure you are running the latest version of the Proton VPN app, as updates often include protocol improvements, stability fixes, and server optimization.
Also check for updates to your operating system, network drivers, and firmware.
This is especially important on Windows, macOS, Android, and iOS, where system-level networking changes can influence VPN behavior.
Adjust Advanced Settings for Better Performance
Proton VPN includes settings that can improve speed in specific situations.
If you know your network is stable, try reducing unnecessary overhead.
- Disable split tunneling only if needed: Misconfigured routing can slow some apps.
- Use a DNS setting that is stable and nearby: Slow DNS resolution can delay page loads.
- Switch off auto-protect features for testing: This helps identify feature-related bottlenecks.
If you are using the app on a router, ensure the router hardware is powerful enough to handle VPN encryption.
Low-end routers often struggle with high-speed VPN traffic.
Test for ISP Throttling or Network Restrictions
Some internet providers throttle encrypted traffic or specific services such as streaming platforms, torrent traffic, or gaming packets.
In those cases, Proton VPN may actually improve access to throttled services, but the added encryption still has a cost.
If speeds are only poor at certain times of day, your ISP may be dealing with congestion.
Compare results across multiple networks, such as home Wi-Fi, mobile hotspot, and a different broadband connection, to see whether the issue follows your ISP or your device.
Use the Right Server Type for the Job
Different tasks benefit from different server choices.
The best server for privacy is not always the best server for speed.
- Streaming: Use a nearby, low-load server with a fast protocol.
- Gaming: Prioritize low latency over raw throughput.
- Downloading: Choose a stable server close to your location.
- Privacy-sensitive browsing: Secure Core may be worth the slower speed.
Matching the server type to the task can solve the “Proton VPN slow” problem without sacrificing the features you actually need.
When to Contact Proton VPN Support
If you have tested multiple servers, protocols, and devices and speeds are still unusually low, contact Proton VPN support.
Provide your device type, operating system, protocol, server location, time of day, and recent speed test results.
Detailed reports help the support team identify routing issues, server incidents, or account-specific problems.
You can also check Proton VPN’s status updates and community reports to see whether a region is experiencing outages or degraded performance.
Quick Fix Checklist
- Connect to a nearby server.
- Switch to WireGuard or OpenVPN UDP.
- Disable Secure Core if speed matters more than extra routing.
- Restart your router and test with Ethernet.
- Close background apps that consume bandwidth.
- Update the Proton VPN app and your operating system.
- Test another network to rule out ISP issues.
These steps address the most common causes of slow VPN performance and usually reveal whether the issue is server-related, device-related, or tied to your internet connection.