Its showing {(2200mb) not sure} in dedicated video memory on my computer but in gts 5 its only showing 1050mb . And its very lag in gta 5. How can i fix it. I have 8 gb ram ,4 gb graphics card and amd a10 processor ,then also gta 5 is lag . How can i increase my dedicated video memory in gta 5 to the maximum limit.