The author shares their experience of rescuing a Node.js application that was struggling with performance issues as user traffic increased.
Initially, the application worked well on the author's machine but started slowing down and crashing as more users accessed it.
The author and their team developed a real-time collaboration tool that faced challenges such as requests timing out, user complaints about lag, and server logs indicating issues.
To improve the application's performance, the author decided to delve deeper into Node.js capabilities and implement necessary changes to optimize the app.