SELECT 
  cscart_settings_objects.object_id as object_id, 
  name, 
  section_id, 
  section_tab_id, 
  type, 
  position, 
  is_global, 
  cscart_settings_objects.name as description, 
  IF(
    cscart_settings_vendor_values.value IS NULL, 
    cscart_settings_objects.value, 
    cscart_settings_vendor_values.value
  ) as value 
FROM 
  cscart_settings_objects 
  LEFT JOIN cscart_settings_vendor_values ON cscart_settings_vendor_values.object_id = cscart_settings_objects.object_id 
  AND company_id = 1 
WHERE 
  1 
  AND section_id = '86' 
  AND (
    FIND_IN_SET(
      'ROOT', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'VENDOR', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'ULT:ROOT', cscart_settings_objects.edition_type
    ) 
    OR FIND_IN_SET(
      'ULT:VENDOR', cscart_settings_objects.edition_type
    )
  ) 
  AND cscart_settings_objects.type <> 'H' 
ORDER BY 
  cscart_settings_objects.position

Query time 0.00083

JSON explain

{
  "query_block": {
    "select_id": 1,
    "read_sorted_file": {
      "filesort": {
        "sort_key": "cscart_settings_objects.position",
        "table": {
          "table_name": "cscart_settings_objects",
          "access_type": "ref",
          "possible_keys": ["section_id"],
          "key": "section_id",
          "key_length": "4",
          "used_key_parts": ["section_id"],
          "ref": ["const"],
          "rows": 20,
          "filtered": 100,
          "attached_condition": "cscart_settings_objects.section_id <=> '86' and (find_in_set('ROOT',cscart_settings_objects.edition_type) or find_in_set('VENDOR',cscart_settings_objects.edition_type) or find_in_set('ULT:ROOT',cscart_settings_objects.edition_type) or find_in_set('ULT:VENDOR',cscart_settings_objects.edition_type)) and cscart_settings_objects.`type` <> 'H'"
        }
      }
    },
    "table": {
      "table_name": "cscart_settings_vendor_values",
      "access_type": "eq_ref",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "7",
      "used_key_parts": ["object_id", "company_id"],
      "ref": [
        "orbit_cscart_orbit_cscart.cscart_settings_objects.object_id",
        "const"
      ],
      "rows": 1,
      "filtered": 100
    }
  }
}

Result

object_id name section_id section_tab_id type position is_global description value
5897 clear_url 86 87 O 10 N clear_url
5899 site_change 86 87 S 30 N site_change daily
5900 site_priority 86 87 S 40 N site_priority 1
5902 include_products 86 87 C 60 N include_products Y
5903 products_change 86 87 S 70 N products_change daily
5904 products_priority 86 87 S 80 N products_priority 0.5
5906 include_categories 86 87 C 100 N include_categories Y
5907 categories_change 86 87 S 110 N categories_change daily
5908 categories_priority 86 87 S 120 N categories_priority 0.5
5910 include_pages 86 87 C 140 N include_pages Y
5911 pages_change 86 87 S 150 N pages_change daily
5912 pages_priority 86 87 S 160 N pages_priority 0.5
5914 include_extended 86 87 C 180 N include_extended Y
5915 extended_change 86 87 S 190 N extended_change daily
5916 extended_priority 86 87 S 200 N extended_priority 0.5