Quicksave/-load without slot changing

[vsub_]

I'm not 100% sure what you mean
F2 - is supposed to save a save state to the currently selected slot,nothing else
F3 - is for switching slots
F4 - is for loading save states from the currently selected slot and nothing else

If you are experiencing a different behavior,then there is either something wrong with ppsspp or your settings for the keys configuration(you can set different keys for saving\switching\loading states)

I know that this feature work correctly(at least here...I cleared 25 games already on ppsspp)because I also abuse them a lot(especially on GEB...to get better items)but I also use the normal way of saving my progress when I have a chance(or I want to)