What I did at one point was rip the .json File directly from the video with this Greasemonkey/Tampermonkey script.
Script link: https://www.somedodgywebsite.com/wp/software/javascript/greasemonkey-tamper-monkey-script-for-porn-hub/
Depending on the browser you use it’ll have a different name, Tampermonkey for chrome, Greasemonkey for firefox. All you have to do is copy and paste the script from that link into a new script, go to the video, and an option to download the .json file should be there.
Once you have the .Json file you may have to convert it into a .funscript file. For that I used the program ScriptPlayer, opened the script tab up top, save as, and save it as a funscript. It’s a little janky to do with a ton of steps honestly.
Sorry for the Essay LMAO