Thanks for reaching out.
I see that a scrolling bar on the right hand side is loading on the AMP pages.
I don’t see this when inspecting your site. Feel free to share more details and I’d be happy to check.
Also there is small shift in the page, when it initially loads.
Is that caused by the theme or the plugin.
While I do see a slight flicker on your AMP URLs you could investigate the cause by using the Health Check & Troubleshooting plugin. This can be used with the admin toolbar as per a guide we’ve published on the plugin website.
Also, do you think my page experience and web vitals are good with AMP pages.
I performed a performance test using web.dev and your AMP URLs do perform significantly better as you’ll see below (Canonical result | AMP result):
Using GP Premium and generatepress theme.
Nice choice! I noticed your navigation menu doesn’t work on mobile using the GeneratePress theme. You’ll find a quick fix for that with the themes AMP extension. GeneratePress did state they would be merging this to their theme. Feel free to follow up with the theme developer.
Let us know if you have any further queries on this.