Well you could do it,if U define every step as a resource in description.ext
Assuming U need 25 fps as a minimum:
titlersc["text1","PLAIN",1]
~0.04
titlersc["text2","PLAIN",1]
~0.04
titlersc["text3","PLAIN",1]
~0.04
titlersc["text4","PLAIN",1]
~0.04
...
...
...
titlersc["text25","PLAIN",1]
That would give U 1 sec movie :hmm:
Lots of work I am afraid...