I wrote a very fast website that scored 99% on GTMetrix and PageSpeed Insights.
Then I added Google Analytics and Google Adsense to the site, adding the scripts to the head section, as advised by Google.
It is saying things like "Third-party code blocked the main thread for 1,080 ms". (Why is it even blocking? It is marked as async..)
It’s really absurd, and my website ranking has also tanked.
Can I fix this by putting the relevant code at the bottom instead of the top?