As the title states, my game doesn't overwrite save slots. Even though I select old save slots when I save the game and the game asks me if I want to overwrite them, they reappear after I quit and load up the game.

Under normal circumstances I would say this isn't a problem, but I'm worried that since I treat the game like any othr RPG and save every few minutes, the save file will become too bloated.

Is there any way to fix this issue, or am I being worried over nothing?