Extensive Google analysis shows that above-the-fold visual content typically takes 7 seconds to load.
53% of visitors will leave if the page takes longer than 3 seconds to load.
That means you’re among the many people who lose more than half of their mobile visitors (= revenue) (70% chance).
AMP could be the answer.
There is, however, a serious flaw in this plan.
On AMP, your advertisements and opt-in pop-ups will not load.
As part of her experiment, Marie Haynes decided to disable AMP and see what would happen.
Next steps?
Here are two no-cost resources that will evaluate your site’s performance and provide in-depth recommendations for improving load times:
Using Google’s TestMySite and GT metrix
Source: https://www.searchenginejournal.com/mobile-page-speed-benchmarks/194511/