I quess I have to give Kupe a chance at some point. Although I still dont think he will hit the top top placement of the fastest science leaders. I got to turn 100 with my Ethiopia game, and I think if you are willing to reload a bit to get a good map, Ethiopia should compete with all civs except Babylon and Norway.
The setup for this game was to try to take advantage of Ethiopias ability to get faith from duplicate resources. This has potential with legendary starts that has so many starting resources around your city. The idea was to use a wetlands map, spawn next to marsh, and not have truffles or suger on the map. That way Maui could be used to give the city 12 more rice, as it is the only resource he can spawn. (Fast games lasts for 3 eras, so 3*4) If you already had 5 or so rice from before, that gives you 17*17(289) fpt before modifiers.There are also some other scenarioes where he can only spawn 1 resource, and with Voidsingers and Ethiopias other abilities, a 500 faith city is pretty sweet.
When trying to roll a good map, I got a start with 11 deer on woods, and I figured that this is too good to give up, so I played that map and gave away the original plan. I figured I could use Maui to ensure the right luxuries for the capital, but that backlashed horribly as it turned out that when using
Marcus Licinius Crassus to annex tiles, he choses the nearest city, regardless of this will create an enclave tile. Was pretty annoyed when I saw that mistake, as it ruined some amazing turn 100 stats. Still the game has potential to end in the 130s at least. So it will still be fast. It is a HOF-game, so I will probably finish it and post it in the HOF-tread.