Throughout the lecture, too much time was devoted to theoretical explanations, and the content was excessively verbose compared to the core material, making it difficult to concentrate throughout. Rather than providing concise explanations centered on practical applications or examples, there were many instances of lengthy explanations of unnecessary background knowledge or abstract concepts, which made the lecture flow drag on and caused significant fatigue. From the perspective of someone who expected a practical-oriented lecture, the actual lecture's tempo, structure, and curriculum felt inefficient, which is disappointing.