The speed of your inner development loop is as an concepts.upper-lower-bounds on the number of iterations that you can complete in a unit of time.
If it takes 5 minutes to compile and run the application, you can complete at most 12 iterations in an hour. Cut it down to 2 minutes and you can now fit in 30 iterations in the same hour!
Possible parts:
The inner dev loop can be extracted out of the the act part in ooda-loop. Its also has an impact on feedback-loops.