Mysterious `runtabloid` Program: Huge Performance Discrepancy

The `runtabloid` program exhibits a striking performance difference when processing different programs. Running the `prog` program yields an almost instantaneous result of 110. However, running `fibo` and `fibo2` (both calculating Fibonacci numbers) takes a significantly longer time, 27.589 seconds and 56.749 seconds respectively. What is the secret behind this disparity? Is it algorithmic inefficiency, or are there differences in program design leading to such a massive performance gap? Further analysis of the code and execution flow might reveal the answer.