Some questions about low-quality grass

[tommytgun]

Ok, so my computer isn't the best, and I've had to tweak some of my video settings lately because of some weird problems I've been having. One thing I can't figure out is how to/which setting would make the grass look somewhat more detailed. Currently, when someone's laying in the grass & shooting I can't see them because of the shape & texture of the grass, and when I'm walking, all of the grass doesn't seem to render beyond 10 or 15 meters, so I just see grass magically sprouting up before my eyes all the time, which also gets pretty annoying.

Any help or insight into this problem would be greatly appreciated.
Screenshots are from Qwai River 64 layer.

Thanks,
Tommy-t-gun