Namaste! I sincerely apologize for the issues you've been experiencing.
The good news is that a complete, from-the-ground-up rewrite of the extension is almost finished! I am currently running final tests across multiple websites and putting together the new guides and tutorial videos.
This massive update is expected to launch on or before October 20. I hope you'll give the new version a try when it drops and consider updating your rating. Thank you for your patience!