Your Next.js application might not be slow because your server is slow.
It might be slow because you accidentally made the browser do work it never needed to do.
I've seen developers increase server resources, change hosting providers, add caching, install optimization packages, and rewrite API calls...
...only to discover the real problem was a component importing a huge library for one tiny feature.
So before you blame Vercel, your VPS, MongoDB, your API, or your internet connection, check these seven things.
