Which supermod has the least sea traffic?

[Rokko]

Hi folks,
this may seem a little weird, but I seriously prefer NOT encountering a convoy with a battleship and two passenger liners and 5 single merchants every two days, so my question would be: In which mod is sea traffic the most sparse?
I'm playing NYGM atm but I'm starting to dislike just how much is going on there.
I haven't played GWX in many years, but is it different in that aspect.

To explain:
It's my fourth patrol. I have already encountered one convoy sinking one battleship and one freighter. A few days later West of Ireland I almost got run over by another 5000t freighter in thick fog and dive (didn't sink him). Later that night I dove again and my sonarman heard another freighter very near by (didn't sink him either but it was another big one). Next morning the weather has cleared and I spot another convoy. Inside it a 14000 liner and a cruiser and that was when I quit.