Yes, there are higher speeds available. When purchasing or renewing you can book a Speed Upgrade option to 30000/10000 kbps.
As a standard we provide 15000/5000 kbps at our ports. Please note, that data from the web server you visit are being routed through our VPN server and then being send to you. So if you visit a US web page from your US location, all data take such "detour". Due to technical reasons (latency) and depending on load on international Internet routes, you can't use the full speed we provide - nothing we can influence, sorry!
We offer a Speed Boost option for free, which you can activate from within your account portal. Five times per month you can test this higher speed for 3 hours each. Using this free boost option you can find out before purchasing, whether this option is a significant improvement for your VPN connection.