Hi Elinor,
Thanks for the feedback and we appreciate it. As for performance, yes, we’ll keep improving it 🙂
And yes, it’s different now. And instead of adding that code, you can simply add this code at your child theme’s functions.php
function x_output_generated_styles() {
//Empty
}
It will override the parent theme’s pluggable function named x_output_generated_styles.
Thanks!