Hi Saurabh,
I don't know the exact names of the metrics to look at, but at a high level you can start by checking the following:
• Broker level 98% query response time, vs Broker level subquery time and subquery TTFB, will tell you the latency split between Broker and data nodes
• Compute level query time, segment scan time and # segments scanned
• If you have real-time streaming ingestion, then for the Compute metrics break out Peon from Historical so you can see if there is a noticeable difference between real-time vs historical segment scanning performance.