I want to know what the difference is in performance if you were to take the code inside a library and run it as regular classes compiled at runtime like the rest of a typical Processing sketch. What are the advantages of libraries other than being standardized and portable?

If I break some code out of its library and embed it directly in my sketch will I see any performance increase? Will I lose performance?

thanks for any and all advice in advance...
Best!

You might gain... some milliseconds at startup. Because that's one jar less to load and perhaps some classes less to handle if you trim the library down.
Probably not worth the work, unless you also want to reduce the size of the jar.