It usually takes 150~160 turns(standard speed, average leader, random map) to research all 67 techs and 50 civics( I recall my worst record is on one map to focus on 250T score so I was even trying to slow down tech and civic to make cheaper districts, that map takes 175 turns, maybe 178)
I have never matched such speed on any level or map of the game. Of course, I have never tried to either.
I think its one of the finer qualities of this game that it can lend itself to various styles of play. Some like to race and some like to immerse. To each their own, of course.
In my current game, I am at turn 770. I certainly did not have all the research done before turn 300. Standard speed, king level. Ludicrous map. That means that for four hundred-plus turns we have all been at the same research level. No more wonders to build, but still a good bit of land to settle. If the Science VC had been enable, I would have won around turn 300. Culture victory would have been around 350. No one has achieved a Religious victory (though I could probably polish that off at this point if I hastened a bit.). The turn limit was set for 2000 and the real challenge I set for myself was to reach the highest number of 'ecstatic' cities possible, as well as a culture score of two thousand or better, and a treasury topping 500,000 gold.
So obviously Lily and I differ wildly on play styles and goals.
If anything R&F is for the immersive player and detailed player.
Based one what I have seen so far, I am quite hopeful this is the case.