AMP Cache Extension Doesn’t Work

Hello,

We’ve installed the AMP Cache extension but it doesn’t seem to work – AMP speed remains the same, and we don’t see any cached AMP pages on our server.

AMP speed results as counted by Google PageSpeed are still “poor” and are much worse than the Desktop results.
Example: https://www.russiandog.net/black-russian-terrier-stalins-dog.html
Largest Contentful Paint (LCP):
Desktop – 2,3s
AMP – 4,6s
Server Response Time:
Desktop – 0.17s
AMP – 0,97s

The AMP Cache extension is activated, is switched on, the “change end point to ?amp” option is disabled, AMP pages are being opened in an incognito window.
Please advise.