Virtual private networks can help users avoid bandwidth throttling based on activity, but this doesn't always work.

What is VPN used for?
More than 31% of netizens globally, or more than 1.2 billion people, confirmed the use of virtual private networks (VPNs) according to a survey conducted in 2023, according to information from Website Rating. It is expected that this number will continue to increase in the near future, especially as online security threats increase. Today's Internet users are looking for solutions to protect their identities and personal information online.
Every device connected to the Internet has an IP address, which reveals information about the device, location, and even the user's identity. A VPN acts as a shield, encrypting traffic and establishing a secure connection to a virtual IP address belonging to another country. From there, new users connect to websites or online services, enhancing their privacy and security against online risks.

A VPN is a tool that helps users keep their device's location difficult to determine for websites or organizations on the Internet. Powered by virtual IP addresses, VPNs not only keep users' data and online activities anonymous but also help them access online services blocked in their country.
Although using a VPN can slow down the internet speed due to the need to go through an intermediary step, at the same time, in some cases, a VPN can increase Internet speed. This is especially important when the user's IP address is limited by bandwidth by the Internet service provider (ISP). VPN becomes an effective solution to overcome this limitation, helping to improve users' online experience.
Why VPN can improve network connection
From time to time, Internet service providers (ISPs) may apply bandwidth throttling or throttling policies to slow down customers' Internet traffic.
Implementing bandwidth throttling, ISPs focus on specific types of online activities, typically traffic-intensive activities like gaming or streaming 4K movies. The purpose of this is to keep the overall network traffic stable and ensure that all ISP customers have enough traffic to use.
In fact, bandwidth throttling measures are often targeted at specific types of websites, such as streaming services. Using a VPN can benefit Internet users who need to use services that require high traffic, such as watching high-definition movies online, playing games, or downloading large files, because VPNs encrypt traffic. Internet traffic, making online activity information opaque to ISPs and helping to avoid bandwidth throttling.
However, it should be noted that VPN is only effective when the ISP applies bandwidth throttling to the target, and will not be effective if the ISP performs bandwidth throttling on the entire network, for example in the event of a failure and Overall traffic drops.