SELECT 
  cscart_images.*, 
  cscart_images_links.*, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_id AS images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.image_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'en' 
WHERE 
  cscart_images_links.object_type = 'blog' 
  AND cscart_images_links.type = 'M' 
  AND cscart_images_links.object_id IN (
    78, 74, 73, 72, 71, 60, 61, 62, 63, 64, 65, 
    66, 67, 68, 69, 70, 59, 58, 55, 56, 52, 
    53, 54, 50, 51, 49, 47, 48, 10, 9, 8
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00051

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.156750778,
    "nested_loop": [
      {
        "read_sorted_file": {
          "filesort": {
            "sort_key": "cscart_images_links.position, cscart_images_links.pair_id",
            "table": {
              "table_name": "cscart_images_links",
              "access_type": "range",
              "possible_keys": ["object_id"],
              "key": "object_id",
              "key_length": "81",
              "used_key_parts": ["object_id", "object_type", "type"],
              "loops": 1,
              "rows": 34,
              "cost": 0.06675,
              "filtered": 100,
              "index_condition": "cscart_images_links.object_type = 'blog' and cscart_images_links.`type` = 'M' and cscart_images_links.object_id in (78,74,73,72,71,60,61,62,63,64,65,66,67,68,69,70,59,58,55,56,52,53,54,50,51,49,47,48,10,9,8)"
            }
          }
        }
      },
      {
        "table": {
          "table_name": "cscart_images",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "4",
          "used_key_parts": ["image_id"],
          "ref": ["u985510652_ecartify_dev.cscart_images_links.image_id"],
          "loops": 34,
          "rows": 1,
          "cost": 0.03368776,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "cscart_common_descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "108",
          "used_key_parts": ["object_id", "lang_code", "object_holder"],
          "ref": [
            "u985510652_ecartify_dev.cscart_images.image_id",
            "const",
            "const"
          ],
          "loops": 34,
          "rows": 1,
          "cost": 0.03450696,
          "filtered": 100,
          "attached_condition": "trigcond(cscart_common_descriptions.object_holder = 'images' and cscart_common_descriptions.lang_code = 'en' and trigcond(cscart_images.image_id is not null))"
        }
      }
    ]
  }
}