Hi:
25TTs/ 200 elements tooks me 3hrs (two time of 25TTs/ 100 elements).
25TTs/ 1500 elements tooks me about 2days.
And I think it also depends on the complication of the object.
I ran a simpler complication object and 25TTs/ 200 elements tooks me just 5-10mins.
I am not sure whether the reason is because it reaches the TOL/CTOL value.
The calculation time has no big difference when I setup TOL/CTOL from 1E-2 to 1E-5.