An initial discussion is needed before order this GIG.
I will provide you Guaranteed Pagespeed score of your Shopify webstore at Google Pagespeed Insights.
I am expert in Shopify webstore speed optimization and done it many times. Even many freelancer's speed optimization work done by me.
If you have any special requirement, Contact me first.
Result score will be based on average of 3 to 5 tests in Google Pagespeed Insights.
You will get free speed audit report.