Looking at these forums, I must be the luckiest SOAB in the world! Somehow, I've been able to get through all of the DLC for FONV and most of the main storyline too with relatively few crashes. But now, with my save file at about 11 MB, the game is unplayable. I can start the game and load the save file, but without fail, no matter where in the game world I am, within 60 seconds the frame rate drops to 0. Sometimes the PS button responds, sometimes not. It's really REALLY frustrating. I've never seen the ending to the game because every time I get close, this happens!

Backup your save, uninstall the DLCs and try again. You will most likely not be able to use the DLC-stuff, but maybe able to continue the main game.

Would try this with also resaving the same and delete the old save data. Also look to see if any of your data is corrupted somehow.

Yeah, adding the DLC completely ruins FONV here. I started over from scratch (after removing the DLC) so idk if you can re-use with the DLC removed.

We got bent over and reamed with FONV UE

Can you uninstall the DLC and play just the regular game with the Ultimate Edition?