Implementing a cache warmer script or extension in Magento 2 helps fill up cache storage for faster response times to improve user experience. Consider using a commercial or free cache warmer module, or create a custom PHP script to warm up categories and popular pages.
Moving JavaScript to the bottom of the page in Magento 2 can enhance the first contentful paint speed metric, improving overall site speed and user experience. Magento 2.4+ has an admin setting for this, enabling easy configuration by running specific command lines and flushing the cache.
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