What about Pegasus-class hydrofoil missile craft as the fastest warships?
Short answerThey are very fast, but a carrier can remain fast in a much wider range of sea conditions.
NotesThe Pegasus-class hydrofoil missile craft are exceptionally fast. Their peak performance differs from the broader seakeeping of a carrier, which can maintain high speed in many more sea states. A speed record should specify whether it means a calm-water maximum, sustained operational speed, or useful speed in difficult weather.