I tested saves from the paradox forums and it seems that the early game for 1.12.5 is faster by about 25% in the 1840 save and 28% in 1870 save. 1.12.5 is 6% slower than 1.13.4 in 1900.
I assume 1.12.5 is slower in 1900 because the new update nerfed the economy.
People are right that the new update slowed the game down.
I started actually looking into Protestantism and the reformation. When I was a practicing Catholic I dealt with scrupulosity and over thought if I sinned or not and if my confession was valid. I looked into reform theology and it seems to lead back into the same feeling if I’m an elect or not. I sympathize with what Luther was dealing with. The Catholic Church has the same pattern of abuses through out history and I don’t think they’re the final authority on matters summarized.