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Cached assets reload instantly and lightweight markup delivers ultra-fast page rendering.
Widespread adoption enables jQuery to load from the user's cache reducing bandwidth and HTTP requests. Serverside fallback ensures delivery.
Magento's behavior for combining JS/CSS files can actually hurt performance. Acumen saves bandwidth by not reloading cacheable libraries and files.
CSS for jQuery functions is loaded modularly alongside the plugin code and then cached for reuse.
Rigorous sprite and CSS3 usage reduces 100+ HTTP requests to just 1. Rendering from cache is near instantaneous for subsequent pages.
Modern browsers natively implement CSS3 effects like
rgba that previously required images. Older browsers degrade gracefully.
jQuery is loaded via the Google Libraries API for: maximum caching, more parallel downloads, and fast delivery.
Magento normally loads all JS in
<head> but Acumen uses custom processes to offset downloading for snappier page loads.
JS files are included only if the page requires them to save bandwidth and speed up the first page load.
Removed non-essential Scriptaculous components reducing HTTP requests and saving bandwidth without sacrificing functionality.