Almost a year ago, Google launched a new YouTube design, but if someone is using the Safari, Edge, or Firefox then probably you have been speculated that why YouTube is loading or working so slowly. Recently, the Mozilla program manager Chris Peterson has highlighted the issue that it’s not the alternative browser that is to blame. Google’s also redesigned and still believe on a deprecated shadow API which can only be implemented in the Chrome browser, but sometimes making other browsers will make YouTube five times slower.