Opencore High Sierra miscellaneous issues :(

My build is: AsRock h97, i5 4590 and GTX 970.
I have two big problems:

1. no internet connection, I have tried various kext both realtek and Atheros but it just doesn't work.

2. is related to graphics speeding: I believe I have 7mb of graphics. I installed CUDA but it does not detect the gtx 970, I activated in confi.plist nv_disable = 1, I updated to 10.13.6.02 and sacricated the Nvidia .127 drivers (it tells me to download version 17G66 but I have not found anything), I have enabled web drivers from clover. I've tried them all but can't enable it.

Any other advice? Thank you