fastSeek()The fastSeek() method seeks an <audio> or <video> element as fast as possible, by seeking to a keyframe instead of exactly the requested time.media-elementsMedia elementslimitedhttps://html.spec.whatwg.org/multipage/media.html#dom-media-fastseek-devhttps://developer.mozilla.org/docs/Web/API/HTMLMediaElement/fastSeekapi.HTMLMediaElement.fastSeekhttps://nowyoucanuse.com/features--fast-seek.html