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A few months ago, I removed Disqus comments from this blog, and replaced it with Giscus, which uses Github discussions for blog comments. When I checked the pagespeed scores of this site recently, I was surprised to see the relatively low scores. The score was 78 on desktop and 88 on mobile. For a blog this lightweight, I’d have thought the scores would be in the 90s. Turns out that the Giscus JS snippet was adding about 330ms of blocking time to the page load. Replacing the script The script be...