If you have an issue, feel free to open an issue on our Github page (https://github.com/projectdelphai/panorama-tab-groups/issues). This add-on works for many people and you can see that we're legit by the amount of discussion and work being put on our github page.

Your issue I believe was also fixed in on of our latest commits and you should hopefully see better performance once it releases (I hope to have the next release by the end of the month)

I translated this using google translate, hopefully I understood you right.