If it was toned down in game, there is nothing you can do. No mod exists that would globally increase the encounter rate to such a degree that you can't even walk two steps, even the one mod that has any effect at all on this rate, LewdCrestX through its libido crest, would not have them coming at you like that. I can barely get three of my current 25, all with lewd crests, to come at me all at once.
Those options may have been toned down because people were getting too many NPCs coming all at once. I can't give you anything concrete because nothing concrete I give you can be done by players, it would have to be edited in the base game files or modded into the game. If this was as easy as an existing mod, I would have already said which as it would be one I specifically stay away from due to my already lower encounter rate.