What does “The code generator has deoptimised the styling of [some file] as it exceeds the max of “100KB”” mean?

I added a new npm package to my project and require it in one of my modules.

Now I get this message from webpack,

build modulesNote: The code generator has deoptimised the styling of "D:/path/to/project/node_modules/ramda/dist/ramda.js" as it exceeds the max of "100KB".

What does it mean? Do I need to take some action?