SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'en' 
  AND lang.name IN (
    'abt__ut2_mv.n_reviews', 'write_review', 
    'abt__ut2_mv_vendor_rating', 'abt__ut2_mv.of_stars', 
    'abt__ut2_mv.read_all', 'abt__ut2_mv.n_reviews', 
    'write_review', 'abt__ut2_mv.n_reviews', 
    'write_review', 'abt__ut2_mv_vendor_rating', 
    'abt__ut2_mv.of_stars', 'abt__ut2_mv.read_all', 
    'abt__ut2_mv.n_reviews', 'write_review'
  )

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "lang",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "392",
          "used_key_parts": ["lang_code", "name"],
          "rows": 5,
          "filtered": 100,
          "index_condition": "lang.lang_code = 'en' and lang.`name` in ('abt__ut2_mv.n_reviews','write_review','abt__ut2_mv_vendor_rating','abt__ut2_mv.of_stars','abt__ut2_mv.read_all','abt__ut2_mv.n_reviews','write_review','abt__ut2_mv.n_reviews','write_review','abt__ut2_mv_vendor_rating','abt__ut2_mv.of_stars','abt__ut2_mv.read_all','abt__ut2_mv.n_reviews','write_review')"
        }
      }
    ]
  }
}