@nprofile1q... @nprofile1q... You say you have 80+ GB of RAM available, but run models in the 30B class?
What you want is a ~300B model, like
https://huggingface.co/unsloth/DeepSeek-V4-Flash-0731-GGUF which can be quantized to fit into the 80+ GB you have. This model also has super tiny KV cache size, 1M tokens at q8 is about 3 GB.
Model size >>>> quantization loss.