So first things first, I'm not very good at computers here so don't expect me to know much or to do a lot but I'll try my best.
I just plugged in my graphics card from a friend and was expecting a big FPS boost because its quite an upgrade from what I have, I think it's a RX 570. Anyway my FPS didn't seem to change at all and when I asked him he said it was stuck running the APU. I would've assumed that it would automatically switch to the graphics card and not run off the APU but I must of plugged something in wrong or done something, even though it seems fine. I don't want to have to manually switch it from the APU to the graphics card instead would rather fix it so it automatically switches back. Sorry if this doesn't make too much sense but I'm really not sure either.
Specs are attached.