What causes poor performance in English language?

Poor performance in English language can stem from various factors, including limited vocabulary, inadequate grammar understanding, and insufficient practice in reading and writing. Additionally, lack of exposure to the language, whether through conversation or media, can hinder fluency and comprehension. Psychological factors, such as anxiety or lack of confidence, can also negatively impact language performance. Lastly, individual learning styles and educational background may influence one's ability to grasp and use the language effectively.