Hi!
We are having problems with the page speed of our site beeing developed atm. It is performing very poorly.
We took a look at the original themes page speed on the same tool, it also does not have a good speed, for mobile it is 20 and 47 for desktop.
As a conclusion, there is no chance to improve page speed drastically since the theme speed is very low.
Will you be looking into this because for a template for e-commerce this is not at all good.