hi, i'm not a programmer. I'm just an admin work under my company.
My company engage with a local magento service provider, and develop an online store to sell our products.
i just try Google Developer PageSpeed, and surprise see it is Score C.
Should i forward the result to the service provider ask to fix it?
we paid their maintenance service yearly.
I would speak to your development partner to see what they advise based on the results you have found.