What's the adjective for speedies? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs speed, speedread and speedy which may be used as adjectives within certain contexts.
speeding
Travelling very fast; moving at speed.
Specifically, travelling at an illegal speed (of vehicles, motorists).
(transitive) To read quickly, usually at an acceleratedrate or unusually high level of speed while maintaining complete comprehension of the material read.