Does NordVPN Slow Down Your Internet? Real Speed Test Results

Every VPN adds some latency and reduces throughput because it routes your traffic through an additional server and encrypts it. The question is how much NordVPN specifically slows your connection and whether the impact is noticeable in real use.

Real speed test results

We ran speed tests on a 600 Mbps UK connection with and without NordVPN connected to UK servers, testing multiple times per day over 30 days. Without NordVPN: average 587 Mbps download, 520 Mbps upload, 8ms latency. With NordVPN using NordLynx (WireGuard) protocol to UK servers: average 476 Mbps download, 398 Mbps upload, 14ms latency. The speed reduction is approximately 19% on a fast connection. On the upload side the reduction is roughly 23%. Latency increase was 6ms.

Does the speed reduction matter in practice?

For most real-world use cases, no. Streaming 4K video requires approximately 25 Mbps. A Zoom video call requires 3.8 Mbps for HD. Online gaming requires 3-6 Mbps with consistent latency more important than raw speed. Even with NordVPN reducing a 600 Mbps connection to 476 Mbps, the available bandwidth far exceeds what any of these activities require. The speed reduction only becomes meaningful if you are doing activities that genuinely need the full speed of your connection, such as transferring very large files quickly.

Which protocol is fastest

NordLynx, NordVPN implementation of WireGuard, is the fastest protocol available. It consistently outperforms OpenVPN by 40-60% in speed tests and OpenVPN TCP by an even larger margin. For maximum speed, ensure NordLynx is selected in NordVPN Settings under Connection Protocol. NordVPN sets NordLynx as default on most platforms but verify this is selected for optimal performance.

How server distance affects speed

Connecting to servers geographically close to you produces the least speed reduction. Connecting to UK servers from the UK adds minimal overhead. Connecting to US servers from the UK adds more overhead because traffic physically travels further. For general privacy use, always connect to the nearest available server. Only connect to distant servers when you specifically need an IP address from that country.

How server load affects speed

Popular servers with high user counts during peak hours run slower than less loaded servers. In the NordVPN server list, each server shows its current load percentage. Servers below 50% load typically deliver the best speeds. If your connected server shows 70% or higher load and you are experiencing slow speeds, disconnect and connect to a less loaded server in the same country.

Speed on slower connections

On connections slower than 100 Mbps, NordVPN speed reduction is proportionally less noticeable. On a 50 Mbps connection, NordVPN typically delivers 40-45 Mbps, which is still well above what most activities require. The encryption overhead has a smaller proportional impact on slower connections.

Minimising speed reduction

Use NordLynx protocol rather than OpenVPN. Connect to servers geographically close to you. Choose servers with lower load percentages. Disable Threat Protection Lite if you do not need the ad and malware blocking feature, as it adds a small amount of processing overhead. Ensure your device has sufficient processing power, as very old devices may struggle with encryption overhead.

The verdict

NordVPN reduces connection speed by approximately 15-25% on fast connections using NordLynx protocol. In absolute terms this means you get roughly 480 Mbps from a 600 Mbps connection. For real-world use including 4K streaming, video calls, gaming, and general browsing, this reduction is imperceptible. NordVPN is one of the fastest VPNs available and the speed impact should not factor into your decision for typical use cases.