Hello @madloki ??
I just tested the latest version on one of my test site and its working perfectly fine.
When Disable on mobile option is checked. It does not show PopUp on mobile devices. I checked on android phone right now but it should work on IOS too.
Also, the google page speed and mobile friendly test does not detect the PopUp either.
Google Page Speed insights mobile tab:
https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fsingle.jwebsol.com%2F
Mobile-Friendly test:
https://search.google.com/search-console/mobile-friendly?utm_source=psi&utm_medium=link&utm_campaign=psi-ux-banner&hl=en-US&id=WZXw0-O4aHdUIvIXWbCpmg
Could you please make sure its not a plugin/theme conflict by deactivating all other plugins and switching to default WordPress theme ideally on a staging site.
Also, what mobile device and browser you are testing it on ?
Best Regards,
Sajid