With a theme from Shopify theme store and just by using TMpagespeed, you can get 90+ scores on Google PageSpeed Insights.
However, if your theme is customized and has a lot of apps installed, these tips can help you to get the best result.
What is above-the-fold content ? It is the portion of a web page that is visible without scrolling. Above-the-fold content will be different depending on the device. It's the first thing your visitors see and most of web performance tools are using it to estimate loading speed.
What is Critical/Non-Critical Resources ?
_ Any resources that need to be loaded before above-the-fold content should also be considered Critical Resources.
_ Other resources are Non-Critical.
Request a demo today to see how TMpagespeed can improve your store performance.