Well, my advice is to only load the visible files in the menu when required to show them (i.e. a scrolling menu where only three are shown at a time.), store the variable that you need into a list with in a list (arrays work too). This should spread out the load time to when the user attempts to access the other files additional files. Also, you should probably make it so that it sorts by most recently saved. Most users are not going to touch their old saves unless they want to show off their progress or just mess with it.
You could also attempt to use
But don't know if that will work.
You could also attempt to use
Code ( lua) Select
local game_var = require("path/to/save/data.dat")
But don't know if that will work.