Your question is Debugging Production Performance Bottlenecks. 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 approach debugging performance bottlenecks in a high-traffic production environment? Explain how you would identify the affected layer, protect users while investigating, validate the root cause, and coordinate remediation. Address trade-offs between mitigation speed, diagnostic depth, and deployment risk.
