Yes, that would be ideal, but here’s a workaround using another 5-star rated plugin.
A neat way to improve pagespeed scores for this plugin (and for any other plugin that loads js/css files on every page or post) is to unload unused js/css files with the plugin “Asset Cleanup”, which is built specifically for that purpose.
It gives you various ways to unload unused js / css files from every page or particular post type (“bulk unload”), or from individual pages/posts.
Using it on my Homepage alone improved my site’s Google pagespeed score from 93 to 97. After unloads on other pages/posts, I got it to 98.
For Secure Content Copy, I discovered that I can unload its two JS files and the single CSS file listed by Asset Cleanup for pages I don’t want to protect, but for posts that I don’t want to protect, I can only unload the two JS files. If I unload the CSS file (secure-copy-content-protection-public.css), then my custom formatted copy protection warning box appears as a banner across the header of posts.
Disclaimer: after you install the plugin, make sure to read the plugin’s instructions thoroughly, and back up your site before using it to make changes to your site.