I like this game a lot, and I have been playing it for years and will usually redownload every new update with new scenes. However, this sandbox game has so much potential for many different user-curated locations (with a bit of imagination) that I keep returning. I guess one of the issues of a game that has a continuing story is that the longer you play, the more slaves you own, the more customized potions and items you save, the more NPC children you have that the game keeps track of, even the more NPCs that are spawned into a tile; the game starts getting slower and slower.
I have two saves; the one where I am playing through the story as a Chad Thundercock has a whole house of NPC slaves that were initially human men who I enslave, mind break, and transform into furry or succubuses, then impregnate. With a library of saved TF/TG potions and items, my army of prostitute enslaved people roaming around shaking down the good citizens of Dominion of their hard-earned money, and more children fathered that will rival Ghangis Khan himself, the game now needs to take a second or so when moving to a different tile, almost 10ish seconds to the time skip or load a new area. So when the story mode is finished, my character probably takes an hour to make one move. I wish I had a way to archive my children's data so the game doesn't need to load it but keep the numerical stats of how many I have.
It is very apparent when I use other save files with a female character with zero children, which loads extremely fast.