You can delegate a user using a Virtual Agent Action with a Lookup Utility on the sys_user table, but if it's slow to load, try applying filters like active=true^rolesLIKEitil to limit results. Also, consider enabling "Reference Qualifier" or "Type Ahead Search" to speed up lookups. If performance is still poor, use a Script block to fetch specific user data based on input instead of loading the full list.
