https://qodeinteractive.com/magazine/how-to-reduce-first-input-delay-in-wordpress/
Having problems with the first input delay on your WordPress website? We'll show you a couple of tried and tested ways you can deal with it!
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https://www.woorank.com/en/core-web-vitals/first-input-delay-explained
First Input Delay is one of the three metrics that make up the Core Web Vitals Google looks at when determining page experience.
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