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The attribute decoding="async" in an tag is a performance-focused hint that tells the browser to decode image data off the main thread. This prevents the CPU-intensive process of converting a compressed file (like a JPEG) into raw pixels from blocking the rendering of other critical content, such as text or interactive elements. Why decoding="async" Matters
While async decoding is generally a best practice for secondary images, it can occasionally backfire for critical "above-the-fold" content: <img decoding="async" class="alignleft" src="ht...
: It allows text and other non-image content to appear sooner, rather than waiting for large images to be fully processed. The Trade-off: LCP and "Popping" The attribute decoding="async" in an tag is a
: Because the browser might paint the rest of the page before the image is ready, the image may "pop in" suddenly after the surrounding text is already visible. The Trade-off: LCP and "Popping" : Because the