if you wish to enable CPU passthrough on any VPS plan you've created on Virtualizor, follow the below screenshot:
For, enabling it as per VPS, follow the below screenshot:
When "Host Passthrough" is selected and saved, the feature "CPU passthrough" will be enabled for the selected VPS or, the entire node, if all the plans come with it! The reason for enabling it is overclocking, for more information, search for this on any search engine!