Hello @ap6y3jimm
1. When you enable AMP, the Google PageSpeed score is reduced from the original one. Showing negative influences.
Can you please switch to the transitional mode for now and disable the minification and concatenation feature for JS and CSS in the lite speed cache plugin? so we can identify performance issues and also compare AMP and non-AMP pages.
Please note that minifying and contacting JS also made your AMP pages invalid ( you can check AMP page validation here ), which means it will not be indexed properly and will not show up in google search results, also it will not be stored in AMP cache unless it’s valid AMP page.
2. The PayPal payment form completely disappears from the page: /membership-join/
The plugin you are using may not be compatible with AMP, I think excluding this from AMP is a better way to handle it.
3. The contacts form disappears but leaves instead a link to make another transition to another page where it already appears in its original form. This creates additional unnecessary traffic and reduces the site’s conversion rate.
WPform lite plugin provides standard features is fully AMP compatible.
However, the pro (paid) plugin has some incompatibilities with fancy fields so they have handled it with the link which redirects to non-AMP page, I think asking this question to WPForms support will be the right approach as you paid for the plugin support.
4. In the Blog section, there are sharing buttons for each article, social networks, and a “like” button that are represented by the jetpack plugin. But after enabling AMP, they are modified as it is not necessary. And the “like” button disappears completely.
And this is paid functionality in Jetpack. It turns out that AMP turns off jetpack’s premium paid features.
This is a known issue and still being worked on you can follow the below GitHub issue on GitHub repo for jetpack for further updates.
https://github.com/Automattic/jetpack/issues/9555