This is the 4374th most frequent Russian word.
быстрое
Fast or quick.
Here, 'быстрое' is an adjective modifying 'решение', showing a characteristic of the noun, implying it was resolved quickly.
У неё было быстрое решение проблемы.
She had a quick solution to the problem.
In this sentence, 'быстрый' is an adjective modifying 'темп', indicating the rapid nature of the game's dynamics.
Темп этой игры довольно быстрый.
The pace of this game is quite fast.
Here, 'быстрое' modifies 'оборудование', describing the equipment as capable of performing tasks swiftly.