pagespeed

Greetings to the github community.
I just started to study site building. There is a question - a lot of pictures and video inserts from YouTube are used on the site pages. Page weight and load time are very poor. What are the best solutions to the problem?
installed a plugin wp-rocket, but he did not really solve the problem.
Sample page https://pickadvisor.org/best-recliners-for-back-pain/
Thanks in advance for any feedback.
Alex
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