Sandbox

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 = '32' 
  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 0.00067

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": 11,
          "filtered": 100,
          "attached_condition": "cscart_settings_objects.section_id <=> '32' 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
5744	em_show_on_checkout	32	33	C	0	N	em_show_on_checkout	N
5751	em_mailchimp_api_key	32	34	I	0	N	em_mailchimp_api_key
5753	em_madmimi_username	32	35	I	0	N	em_madmimi_username
5745	em_checkout_enabled	32	33	C	10	N	em_checkout_enabled	N
5752	em_mailchimp_list	32	34	S	10	N	em_mailchimp_list
5754	em_madmimi_api_key	32	35	I	10	N	em_madmimi_api_key
5746	em_double_opt_in	32	33	C	20	N	em_double_opt_in	N
5755	em_madmimi_list	32	35	S	20	N	em_madmimi_list
5747	em_welcome_letter	32	33	C	30	N	em_welcome_letter	N
5748	em_service	32	33	S	40	N	em_service	dummy
5749	em_token	32	33	D	50	N	em_token	c8f4f554628f6e5260484b2ef91d796e
5750	em_lastsync	32	33	D	60	N	em_lastsync	1558434483