Adjusting for the longer English New Game opening text and extra text on game load, this is about 20-25 seconds away from Pingval's run. Seems like there's around 45 seconds to save in all with current strats, but quick disk swaps are a little hard to do for me.

I could add in some better tech on the Save writing (hold R1 for speed while moving) and save a bit on the savepoint and save copy.