dynamic wp-content folder path

I want this plugin it’s cool! But plugin don’t work!

I move wp core files to subdirectory as discribe here: http://codex.ww.wp.xz.cn/Giving_WordPress_Its_Own_Directory
My ‘wp-content’ is in server root as .htaccess. The plugin don’t understand it.

For excample: my files in server root:
/wp-content
index.php
.htaccess
/core/wp-admin
/core/wp-includes
/core/…

Repair this moment please.

https://ww.wp.xz.cn/plugins/wp-fastest-cache/