Why can no review name a permanent fastest VPN?
The result depends on your internet provider, physical route, Wi-Fi quality, device, VPN protocol, chosen gateway, server load and time of day. A reviewer on a fast fibre line in one country is not reproducing your route from another country. Provider apps and networks also change after a review is published.
Raw numbers from unlike setups therefore should not be merged into a precise ranking. Converting each result to a percentage of its baseline is helpful, but it does not remove differences in hardware, distance or test method.
How do you run a useful streaming-speed comparison?
- Set the use case. Name the device, streaming service and server region you actually need.
- Measure a baseline. Test without the VPN immediately before each set of VPN runs.
- Hold variables still. Use the same device, connection, protocol, test endpoint and server region for each candidate.
- Repeat the run. Test several times in the viewing hours that matter and report a median or range, not the best sample.
- Watch stability. Record reconnects, buffering, large latency changes and whether the app silently changes protocol or server.
Do not use speed testing to make a privacy conclusion. It measures performance, not logging or security.
What should the result say?
A defensible result is dated and local: “On this device and connection, using this protocol and region, these were the repeated results.” It is not “Provider X is fastest for everyone.” Also test whether the streaming service permits playback through that connection; throughput alone cannot establish access.