I have heard how node.js apps are faster than Java so I was surprised when I load tested node.js micro-service https://github.com/gengstrand/clojure-news-feed/tree/master/server/feed4 and compared the results with the same load test of this feature identical Java version https://github.com/gengstrand/clojure-news-feed/tree/master/server/feed3 and found the node.js service to have 40% lower throughput and from 19 to 34% higher latency. What could I have done to make this app faster?