This is too slow. Help me speed it up.
[paste code or describe the bottleneck]
What I’m seeing: [e.g. “takes 12s to load 500 rows”, “API response time spiked to 3s”, “build takes 4 minutes”] Acceptable target: [e.g. “under 1s”, “50% faster”, “fast enough to not annoy users”]
Don’t guess — point to the specific lines or patterns causing the issue and explain WHY they’re slow. Then give me fixes in order of biggest impact first. If profiling or measuring would help, tell me the exact command to run before we start optimizing blind.