Potential for vectorizing for-loops

[LeonieFreisinger]

Status Quo
Currently, we have implemented a mix of vectorized functions using the .apply() method and functions that include for-loops. For-loops are often easy to read, however, also use more computation time, which is a major drawback. That´s why we want to identify the for-loops that can be vectorized instead.

Action
Skip the TOT code base for functions that include for-loops that can be vectorized and implement a less computation time expensive approach.