How to improve test results in Google PageSpeed?

Question

Google

There is a site that, without Yandex metrics, any third-party API services, shows excellent results in Googe PageSpeed. When these services are connected, the speed drops dramatically and the pagespeed percentage is already in the red zone. Are there any useful articles, or maybe tips on how to avoid a heavy load of all these services, while keeping them functioning? loads heavily, judging by pagespeed, Yandex CDN, Yandex Metrica and Google Tag Manager

Answer 1

All tips for improving performance are pagespeed itself and writes based on test results. Lazy loading can help with metrics

Answer 2

If you have Wordpress, then the WP Rocket plugin gives real results https://zmoe.ru/links/wprocket - it really speeds up to 98-100 with all the metrics and a bunch of other scripts.