So my friend bought himself a GPU for his pre built PC (not sure what its called, not the greatest but its okay) and he wanted to play some better games, so i recommended the R9 270x Graphics card as seen here. He bought it, i installed it, turned it on, and it seems to be all working. image is displaying, and it all seemed to be okay, but then after the driver installed and he restarted his PC, the resolution of the computer changed and it didn't seem to get him above 37 fps on minecraft, pretty sure this can't be right. Any suggestions would be much appreciated. Thanks!