The Soviets did a huge amount of research into very high speed water vehicles, surprising given they had a notably small coastline (for the overall size of the country) to defend. Jet flying boats (Beriev), the Ekranoplans (Caspian Sea Monster), and various hydrofoils, which last they became expert in and can still be seen in commercial service around the country on rivers and lakes.
I get the feeling that one thing they would all find challenging is storm conditions. Something which naval vessels have taken in their stride for centuries.