Game speed, it is correct this count? (yes, and some tips)

Here a comparative table for 1 sim day with real duration from 24:29 upto 72 minutes


17 24:29

18 25:55

19 27:22

20 28:48

21 30:14

22 31:41

23 33:07

24 34:34

25 36:00

26 37:26

27 38:53

28 40:19

29 41:46

30 43:12

31 44:38

32 46:05

33 47:31

34 48:58

35 50:24

36 51:50

37 53:17

38 54:43

39 56:10

40 57:36

41 59:02

42 60:29

50 72:00