The author migrated their dynamic tool `neutrality.wtf` to a serverless architecture using Netlify, resulting in a 7x performance improvement. The new architecture is loosely coupled and decoupled, allowing for easy maintenance and updates of the microservice and UI separately. The use of caching and On-demand builders further improved performance. The author notes that the Jamstack approach has made development easier and more sustainable, with features such as a consistent development environment, staging servers, and standalone npm libraries.