Single post in Quality of Life changes [UserScript]

I don't remember any time in specifics, since I often keep the option unchecked as it did make some lag normally (but only one or two seconds of it). I've had the new script installed for a couple weeks now and have used that feature successfully in the past, but it started acting up a few days ago, and I really can't think of a specific reason why it'd change ;v;'' edit: i didnt see ur edit til i posted, ill get the screenshot in a sec