Rtk Nic Driver [better] 【ESSENTIAL】

Or build from source from Realtek’s site.

sudo apt install r8168-dkms # Debian/Ubuntu rtk nic driver

To prevent CPU lockup from "Interrupt Storms" (where high network traffic triggers millions of interrupts per second), the driver implements or MSI-X . It groups interrupts into batches (e.g., 64 packets per interrupt) to balance latency and CPU load. Or build from source from Realtek’s site