A little hel here please

[SamileonXD]

I need some help, when i instaled bo2 with plutonium, at the very begening it worked just fine, but a few days ago i have a lot of lag in zombies mode, an i don´t understand why, i already have configurate the all setings in low, but it doesn´t work

[FragsAreUs]

if your having low fps its probably best to see about doing a pc upgrade