Comment by haburka

The lack of any substance to their claims besides vague hand waving is a tell tale sign that they don’t have solid engineers working on this project. If they had specific GitHub issues documenting this behavior or code samples then it would be much more plausible. I’m sure there are some issues but the performance improvements they’re getting are far too large to be anything besides their own fault.

Additionally being able to replace their implementation in 3 days is a sign of extremely shoddy engineering. If you can replace it in 3 days but you can’t fix it then you’ve had irresponsible maintainers.

I’d recommend Docusaurus for a static docsite over NextJS. It’s got a lot of batteries included.

NextJS is a framework. You can make it extremely slow. No framework can save you from yourself.