And how much time did this 200 turns cost you in play time? 2 hours? Less? more?
Bit less - hour and half.
Beginning feels like slow takeoff on Eternity/Nightmare/Gigantic.
I'll test Normal/Settler/Duel now
1

for Brute, 2

for Stone Thrower (1 turn to build)
Alpha male and female cost 1

(1 turns to build on city foundation)
PC Klasies River Caves - world wonder costs 7

(4 turns to build on game start)
Nomadic Lifestyle costs 10

- 2 turns to research.
I researched 10 techs within 12 turns.
Units are extremely slow compared to tech progression

Extremes will feel saner after production/research modifiers change to AI only.
That is AI will be faster/slower on higher/lower handicaps.
Also balancing to calendar will be easier - AI doesn't care about calendar anyway.
Higher difficulties on my no AI spacemap is just like another game speed modifier.
Lets try Normal/Noble/Standard.
2

for Brute, 3

for Stone Thrower (1 turn to build)
Alpha male and female cost 2

(1 turns to build on city foundation)
PC Klasies River Caves - world wonder costs 9

(5 turns to build on game start)
Nomadic Lifestyle costs 15

- 2 turns to research.
Researched first 10 techs in 17 turns.
What 50 000 BC does represent?
In fastest and standardized pace I reached that date around third techs column.