Huge header code with style tag

Hello, you have done a very nice job with this builder

My point.
When you build a page for joomla from the nicepage frontend editor extension, you can see that a huge code of about 5000 lines is generated as an "in-line" code with tag.
the negatives of that is

1. Difficult to read the code and limited access
2. bad look of the code
3. security reasons as hackers can use the in line code to run their scripts (man in the middle)

Is it possible to have a single file for this style that will be loaded with a style link in the header?
Thanks in advanced
Very nice work