BeatriceElysia: Have no idea...
But here's speed test done by one web page
Nice, that's helpful information. Looks like you're downloading at full speed from GOG (that is, the speed at which you download from GOG is roughly the same as what you get on the speed test site). If you want faster Internet you'll need to arrange for an upgrade from your ISP.
That's assuming, of course, that you're currently paying for a ~12Mb/s connection. If you're actually paying for something faster then you're not getting full speed and it's worth figuring out why.
What speed is your ISP currently promising you?