Hi,
Yes, Google always scores with 20-40 points mobile performance for 99% of websites built with WordPress. To get more points you need to have a really light page. For example remove all sliders, carousels and leave a few banners and products only. Then you will get a high result. But usually, our theme works very fast on mobile devices and don’t have any problems with performance. We suggest you to test it on a few mobile devices and you will see that there are no real performance problems.
We tried to open that link but it returned 404 error.
Regards