For some reason, load times on startup and when opening the save menu are insanely long for me, to the point where it makes the game unplayable. Every time I open the save menu, I have to wait 15-60 seconds to be able to save or load. I'm the kind of person who likes to test out all the dialog options and explore the branching pathways, so this really adds up and it's gotten to the point where even though I was enjoying the game otherwise, I had to stop playing because I'd be spending half my time staring at the save file page and waiting for it to load.
If it helps, the problem seemed to get worse the more save files I made, but did not get better when I deleted save files.