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, 
  (
    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 section_id = 90 
  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.type <> 'H' 
ORDER BY 
  cscart_settings_objects.position

Query time 0.00030

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	storefront_values	system	PRIMARY,storefront_id,company_id				0	const row not found
1	SIMPLE	cscart_settings_objects	ref	section_id	section_id	4	const	10	Using where; Using filesort

Result

object_id	name	section_id	section_tab_id	type	position	is_global	description	value
5883	notice	90	91	O	0	N	notice
5884	reviews_per_page	90	91	I	10	N	reviews_per_page	10
5885	review_approval	90	91	S	20	N	review_approval	any
5886	review_ip_check	90	91	C	30	N	review_ip_check	N
5887	review_fields	90	91	S	40	N	review_fields	advanced
5888	review_after_purchase	90	91	C	50	N	review_after_purchase	N
5889	review_ask_for_customer_location	90	91	S	60	N	review_ask_for_customer_location	none
5890	split_reviews_by_storefronts	90	91	C	70	N	split_reviews_by_storefronts	N
5891	images_upload_allowed	90	91	D	80	N	images_upload_allowed	Y
5892	product_variations	90	91	E	90	N	product_variations	product_variations.tpl
5893	split_reviews_for_variations_as_separate_products	90	91	D	100	N	split_reviews_for_variations_as_separate_products	Y