I don’t think you’ll be able to link them directly.
However, you can simply hook into when ACF is saving these fields and also have them overwrite the correct option in the options table or whatever you need to overwrite.
Here’s the documentation for hooking into ACF saving values (the acf/save_post hook): https://www.advancedcustomfields.com/resources/acf-save_post/
You’ll probably want to make sure you’re saving the correct page (your options page).
You can do that with get_current_screen() : https://codex.wordpress.org/Function_Reference/get_current_screen
Then, it would simply be a matter of overriding post_meta ( update_post_meta() ) or options ( update_option() ).