To improve problem-solving speed for tests and competitions, dedicate one hour daily to practice and focus on timed sample competitions. Carefully read each problem and define variables clearly, as each sentence often corresponds to an equation. Identify problem types you struggle with, learn the necessary concepts, and seek additional practice problems in those areas. Familiarize yourself with specific topics relevant to the competition, such as geometry theorems or algebra tricks. Consistent practice and targeted learning are essential for enhancing performance in timed settings.