Rust: high fps and smooth gameplay but freezing and stuttering with buildings

Hey guys… I’m a huge fan of rust but I can’t play it because of the constant freezing and stuttering when a building comes into view. I did a search for the issue and didn’t see much listed for the newer version of Rust. Hopefully you guys can help me out. I’ve tried running low settings all the way up to high and different resolutions as well. I’ve verified cache and tried running in DX9 as well. My computer specs below.

Intel i7 920
NVidia 660 GTX

I know back in the old Rust there were some really useful commands to make gameplay better like the no.grass or whatever… Thanks for any feedback you might have!