Your question is Performance vs Maintainability. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you balance performance requirements with code readability and maintainability?
Provide a practical engineering example showing how you identify genuine performance needs, choose targeted optimizations, and preserve understandable design. Explain how you validate the trade-off through measurement, testing, documentation, and review.