Node is at its best when a lot of connections are open at once and each one is doing comparatively little work: live dashboards, chat and notifications, order and delivery tracking, and JSON APIs feeding a web or mobile front end. Because the server and the browser both run JavaScript, one team can work across the whole stack and share validation logic instead of writing it twice. Where Node struggles is heavy computation in the request path — large image or video processing, report generation over millions of rows, or anything that pins a CPU — because that work blocks the event loop and slows every other request. Those jobs belong in a background worker or a different runtime, and we will design for that rather than pretend the problem away.