# `@vercel/next` Functions Config Optimized Lambdas Opt-out #### Why This Warning Occurred `@vercel/next` by default now bundles pages into optimized functions, minimizing bootup time and increasing overall application throughput. When the `functions` config is added in `now.json` or `vercel.json`, it causes conflicts with this optimization, so it is opted-out. #### Possible Ways to Fix It Remove the `functions` config from your `now.json` or `vercel.json` to take advantage of this optimization. ### Useful Links - [Functions Config Documentation](https://vercel.com/docs/concepts/projects/project-configuration#functions)