There are no hard set rules as to which protocol will give you the best speed. OpenVPN over UDP is a good default to try. If you find yourself having issues, try switching to a different protocol to see if your VPN speed improves.
4) VPN Server Load and Bandwidth, How powerful the VPN server is will have a significant impact on the speed. Overloaded servers with a bandwidth that cannot keep up with the demand will result in a much slower experience. The client software you use to connect to a VPN service will usually tell you how many IP addresses and how much bandwidth a server has. The higher those numbers, the more powerful the server. Those same clients sometimes even show real-time usage. If the server you are connected to is overloaded, switching to a different one is usually as simple as a couple of mouse clicks.
5) Your Network Setup, Whether your device is on a wired network and physically connected to a router or using WiFi can affect VPN speed. This distinction is especially relevant if you have a fast connection to the outside world. Because a wired connection is often quicker than WiFi, the latter can be a limiting factor. You can try plugging your computer directly into the router to see if there is a speed improvement.
In this article, I will look at several factors that can influence the speed of a VPN, and how they can be mitigated.
If you do not have a good reason for connecting to a particular VPN location, picking the one closest to you is the best option. For example, if you live in Texas and want to log into a US VPN server, use one in Houston or Dallas instead of one in New York. Similarly, if you are located in China and need a US VPN server, find one that is available on the West Coast over one somewhere in the east.
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