High request latency at p99 degrading user experience

P99 request latency exceeds 1 second for 5 minutes at the entrypoint level, indicating slow backend responses or network issues affecting user experience.

Identify slow services using: topk(5, histogram_quantile(0.95, rate(traefik_service_request_duration_seconds_bucket[5m]))). Check backend service performance and resource utilization. Review network connectivity between Traefik and backends. Analyze access logs filtered by minDuration to identify slow requests. Consider scaling backend services or optimizing application code.