Resetting the NVRAM (Non-Volatile Random-Access Memory) and SMC (System Management Controller) can sometimes resolve cursor jerkiness caused by firmware glitches. Look up the specific key combinations for your motherboard to reset these settings.
Ensure all your hardware components, especially the DFI-SD106-Q170 motherboard and i3-7300 CPU, are compatible with macOS 13.6.6. There might be known issues with this specific combination. You can search online forums or Apple's support website for compatibility information.
