Hello. The specialty servers are inaccessible via our extension due to the different protocol usage. However, in terms of our application's connection speed, it does depend on a number of factors and can be improved by altering a few settings dependently on the configuration used. Hence, it would be best if you'd contact our customers' support team, for them to check what could be causing the slowdown and provide you with assistance on speeds improvement. Our team is available 24/7 at support.nordvpn.com. Thank you!