Your question is System Slow? Troubleshooting Approach. 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).
Tell me about your systematic approach to troubleshooting when a system is running slow and how you determine the bottlenecks.
Explain how you establish a baseline, narrow the problem across the application, host, network, and dependencies, select diagnostic tools, and validate the suspected bottleneck. Keep the response focused on production troubleshooting and distinguish correlation from evidence of causation.