I am concerned about my First Contentful Paint and global speed score on my product page on page speed insight tool .I have edited the code of the debut shopify free theme on a partner account. I transfered the updated theme on my merchant account and installed 3 additional apps.
When comparing data from google page speed there is a big performance difference between themes on the partner account and merchant account.
On the partner account (https://nostressnomore.myshopify.com/products/bracelet-distribgel), global speed is 72 and first contentul paint 2,5s
On my merchant account (https://maccaa.fr/products/bracelet-distribgel?variant=34622484676746) global seepd score 49 and first content paint 3,4s
I don't know where this difference comes from. I was guessing this must be from an app. I tried to find this with gtmetrix and the network tab from this inspector tool, but I don't feel like apps have many server requests or take time to load.Any help appreciated,Thanks