I bought Asus N550JA-SB71T 1 year back and ever since I haven't been able to play serious games over it efficiently. I need to know if I can do anything to play games like GTA V over this laptop fluently (like installing some softwares or overclocking) or maybe if I can upgrade its grphics card to Nvidia or AMD somehow. I am currently running Windows 8.1. ALso I wanted to know if ugrading my RAM would effect the GPU performance as this laptop uses Intel UMA graphics