well it's impossible for me to upgrade my microSD anymore. i just bought a new one a few weeks because my old when was too slow to handle AP patching, so i got a class 6 transcend, which everyone recommends. i will try messing around with the AP settings i guess and formatting, i will compare the lag issue when i have retail i guess. it's not that bad like i said, only when i have an assload ton of stuff. like if i have 8x 3 lane shooters or whatever it is.