Crazyload Page Speed Optimizer

Been doing Shopify builds for six years so i went in skeptical. The deferral logic didnt break my custom sections which honestly surprised me. GTmetrix went from C to A on the collection pages, and the third party scripts we had piling up finally get cached instead of blocking render. Minification is solid. Two asks: let me exclude individual scripts from the UI, and give us a preview mode before anything goes live.