Yeah, that's the thing with me -- I have so many saves it does take more time now to save/load games. That's why I want to clear some (a lot!) of them out.
A great many of my saves belong either in the category of "I probably won't revisit the module again" or "The module has been changed/updated anyway, so saved game is pretty much meaningless anyway".
So thanks for the info, all! Guess I will just go to the saved games directory and do some much needed deleting.