Extremely Long Save Times

When attempting to save my game using either "Save" or "Save As," the saving screen gets stuck in an extremely long loading process. I’ve even left it overnight, and it remained stuck on the saving screen.

Eventually, I have to force close the game. However, when I reload the game, it appears the save did go through—so it’s saving correctly, but the saving screen never completes, forcing me to close the game manually every time.

This issue happens consistently, regardless of which saving method I use.

Any idea what causes this?