It's hard for outsiders and novices to fathom what an assembly line feels like. Elite performers are often cranking things out at a scale that normal people wouldn't believe.

One PR every three days, while interesting for what it says about their development, has nothing to do with performance.

I had a day last week where I put up ten small PRs. It'd be a bit silly to say I was especially elite that day. I was just making small semi-related PRs for a routine task.