I am learning a pop song that is in 4/4 and has a tempo of 81bpm and don't understand why the writer has chosen cut time. Is this so he doesn't have to use 16th notes so much and so the reader doesn't have to read a lot of 16th notes? I have very similar songs with similar tempos and in a similar styles where the sheet music is written out in 4/4 common time and would have liked this piece to be written like this too but it isn't. I can't understand why the writer chose cut time.
Also, in my DAW if I want to play this piece note for note I would have to set my bpm to 162bpm which is also confusing. If the writer is using cut time shouldn't the bpm at the top of the piece change to accurately represent the duration of the notes?
Here is a section of the partiture https://ibb.co/cMGqoJ