SELECT 
  cscart_settings_objects.object_id as object_id, 
  cscart_settings_objects.type as object_type, 
  cscart_settings_objects.name as description, 
  (
    CASE WHEN storefront_values.object_id IS NOT NULL THEN storefront_values.value ELSE cscart_settings_objects.value END
  ) AS value 
FROM 
  cscart_settings_objects 
  LEFT JOIN cscart_settings_vendor_values AS storefront_values ON storefront_values.object_id = cscart_settings_objects.object_id 
  AND storefront_values.storefront_id = 1 
  AND storefront_values.company_id = 0 
WHERE 
  1 
  AND (
    FIND_IN_SET(
      'STOREFRONT', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'ROOT', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'MVE:STOREFRONT', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'MVE:ROOT', cscart_settings_objects.edition_type
    )
  ) 
  AND cscart_settings_objects.object_id = 5868 
ORDER BY 
  cscart_settings_objects.position

Query time 0.00083

JSON explain

{
  "query_block": {
    "select_id": 1,
    "const_condition": "1",
    "table": {
      "table_name": "cscart_settings_objects",
      "access_type": "const",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["object_id"],
      "ref": ["const"],
      "rows": 1,
      "filtered": 100
    },
    "table": {
      "table_name": "storefront_values",
      "access_type": "const",
      "possible_keys": ["PRIMARY", "storefront_id", "company_id"],
      "key": "PRIMARY",
      "key_length": "11",
      "used_key_parts": ["object_id", "company_id", "storefront_id"],
      "ref": ["const", "const", "const"],
      "rows": 0,
      "filtered": 0,
      "unique_row_not_found": true
    }
  }
}

Result

object_id object_type description value
5868 H watermark a:7:{s:4:"type";s:1:"T";s:4:"text";s:57:"Please refer to vendor for actual & updated product image";s:4:"font";s:5:"arial";s:10:"font_color";s:5:"black";s:14:"font_size_icon";s:1:"5";s:18:"font_size_detailed";s:2:"25";s:8:"position";s:12:"right_bottom";}