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SELECT 
  b.variant_name, 
  a.*, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier, 
    a.modifier
  ) as modifier, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier_type, 
    a.modifier_type
  ) as modifier_type 
FROM 
  cscart_product_option_variants AS a 
  LEFT JOIN cscart_product_option_variants_descriptions AS b ON b.variant_id = a.variant_id 
  AND b.lang_code = 'en' 
  LEFT JOIN cscart_ult_product_option_variants shared_option_variants ON shared_option_variants.variant_id = a.variant_id 
  AND shared_option_variants.company_id = 1 
WHERE 
  1 
  AND a.option_id IN (
    120642, 116174, 118799, 107188, 116159, 
    116170, 118855, 116172, 116176, 103421
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00097

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	a	range	status,option_id,option_id_2	option_id	6		20	Using index condition; Using filesort
1	SIMPLE	b	eq_ref	PRIMARY	PRIMARY	9	toolboxdigitalshop_dev.a.variant_id,const	1	Using where
1	SIMPLE	shared_option_variants	eq_ref	PRIMARY,company_id	PRIMARY	7	toolboxdigitalshop_dev.a.variant_id,const	1

Result

variant_name	variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type	status
MP3	207378	103421	1	0.000	A	A	A	A
MP3	214912	107188	1	0.000	A	A	A	A
MP3	232854	116159	1	0.000	A	A	A	A
MP3	232876	116170	1	0.000	A	A	A	A
MP3	232880	116172	1	0.000	A	A	A	A
MP3	232884	116174	1	0.000	A	A	A	A
MP3	232888	116176	1	0.000	A	A	A	A
MP3	238134	118799	1	0.000	A	A	A	A
MP3	238246	118855	1	0.000	A	A	A	A
MP3	241820	120642	1	0.000	A	A	A	A
WAV	207379	103421	2	0.300	A	A	A	A
WAV	214913	107188	2	0.300	A	A	A	A
WAV	232855	116159	2	0.300	A	A	A	A
WAV	232877	116170	2	0.300	A	A	A	A
WAV	232881	116172	2	0.300	A	A	A	A
WAV	232885	116174	2	0.300	A	A	A	A
WAV	232889	116176	2	0.300	A	A	A	A
WAV	238135	118799	2	0.300	A	A	A	A
WAV	238247	118855	2	0.300	A	A	A	A
WAV	241821	120642	2	1.500	A	A	A	A