Okay: I watched the 4:21 link.
The topic/link may be a "thing" but not a useful thing for the most part. All in all does not offer anything of value and talking is very fast.
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Let's go back a step: the post and provided link imply that you have or are concerned about a performance issue.
My recommendation is that your update your post to include full system hardware specs and OS information.
Then ask some questions, as applicable, regarding performance problems with your computer.
Ignore the link. Actually I believe the link should be deleted but will take that option under advisement.