Why it’s important
How to fix
Reduce JS file sizes by removing comments, white spaces, and redundant code, and in some cases, use shorter variable and function names.
Hence, minification is a lower priority optimization that should be regarded as a fine-tuning step to refine your page experience rather than single-handedly boost your page performance.
To detect not only the issue but other kind of site level and page level problems, just make the full site audit.