Use the --fast --turbo or --relax parameter

Standard, Pro, and Mega plan subscribers can use the --relax, --fast, or --turbo parameters at the end of a prompt to run a single job using Relax, Fast, or Turbo mode instead of changing their preferred setting.

Technically speaking user can stick any of those params right in the prompt so if you want to control that aspect you may want to sanitize user input and remove/swap those params to desired values. Perhaps with regex.