Hi Erick,
I'm afraid you've run into the biggest limitation that laptops have versus desktop machines; the lack of upgradeability. Sure there are some features you can swap out to help with performance like HDD and RAM, but in order to fit everything into a laptop case, it all has to go onto the motherboard. Which means there isn't a separate graphics card that can be changed out; all you have is the graphics hardware, including the graphics chip (NVIDIA NVS 3100M) all built into the motherboard. Sometimes you can swap out the motherboard for one with more capabilities, but that depends on the manufacturer making two different motherboards that fit into the same chassis. Sometimes they do that, but it's more the exception than the rule and I see no indication that there's anything else available for yours.
So yeah, the short story is that there's no graphics upgrade possible for your laptop that will give you what you're looking for. If you want upgradeability like you're thinking you have to go to a desktop machine; laptops just don't have it.