Query optimization for Next.js build with Sanity.io

*[
        _type == "trip" &&
        contentSv->slug.current == "royal-national-hotel"
      ] {
        _id,
      }[0]

*[
        _type == "tripContent" &&
        slug.current == "royal-national-hotel"
      ] {
        _id,
        ...(*[references(^._id)][0] {
          // what I need from the parent
        })
      }[0]

*[
        _type == "tripContent" &&
        slug.current == "royal-national-hotel" &&
        count(*[_type == "trip" && contentSv._ref == ^._id]) > 0
      ] {
        ...(*[_type == "trip" && contentSv._ref == ^._id][0] {
          _id,
          "headline": ^.headline,
          "description": ^.description,
          "salesPitch": ^.salesPitch,
          // ... other stuff
        })
      }