Most of the web really sucks if you have a slow connection https://danluu.com/web-bloat/ pic.twitter.com/Kg0qz3hAnH
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According to the PSI page your site is indeed "fast." Maybe GWT is using old data?pic.twitter.com/xGRiiZWeo6
They do use 75th different percentile to reach 0.6s but still they say 92% of loads are <1s so 90th percentile should also be <1s
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