All VPNs slow down your internet speeds because the encryption-decryption process increases the time it takes for your data to travel over the web. The distance between you and the VPN server you’re connecting to can also decrease your overall connection speeds.
But ExpressVPN significantly minimizes the speed loss with its extremely fast proprietary Lightway protocol and its large server network in 105 countries (so it’s easy to avoid overcrowded servers and connect to nearby servers to get fast speeds). In my speed tests, I always had very fast speeds for all online activities, including gaming, torrenting, streaming, and browsing. I even had fast speeds on 5+ devices when I used ExpressVPN’s router app. This is not surprising, considering that ExpressVPN is the fastest VPN on the market.