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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 (
    85480, 85210, 85209, 85219, 85132, 84770, 
    84545, 84544, 84539, 84317, 84312, 
    84311, 84310, 84309, 84303, 84215, 
    84214, 84691, 84690, 84688
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00079

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		40	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	168964	84214	1	0.000	A	A	A	A
MP3	168966	84215	1	0.000	A	A	A	A
MP3	169142	84303	1	0.000	A	A	A	A
MP3	169154	84309	1	0.000	A	A	A	A
MP3	169156	84310	1	0.000	A	A	A	A
MP3	169158	84311	1	0.000	A	A	A	A
MP3	169160	84312	1	0.000	A	A	A	A
MP3	169170	84317	1	0.000	A	A	A	A
MP3	169614	84539	1	0.000	A	A	A	A
MP3	169624	84544	1	0.000	A	A	A	A
MP3	169626	84545	1	0.000	A	A	A	A
MP3	169912	84688	1	0.000	A	A	A	A
MP3	169916	84690	1	0.000	A	A	A	A
MP3	169918	84691	1	0.000	A	A	A	A
MP3	170076	84770	1	0.000	A	A	A	A
MP3	170800	85132	1	0.000	A	A	A	A
MP3	170954	85209	1	0.000	A	A	A	A
MP3	170956	85210	1	0.000	A	A	A	A
MP3	170974	85219	1	0.000	A	A	A	A
MP3	171496	85480	1	0.000	A	A	A	A
WAV	168965	84214	2	0.300	A	A	A	A
WAV	168967	84215	2	0.300	A	A	A	A
WAV	169143	84303	2	0.300	A	A	A	A
WAV	169155	84309	2	0.300	A	A	A	A
WAV	169157	84310	2	0.300	A	A	A	A
WAV	169159	84311	2	0.300	A	A	A	A
WAV	169161	84312	2	0.300	A	A	A	A
WAV	169171	84317	2	0.300	A	A	A	A
WAV	169615	84539	2	0.300	A	A	A	A
WAV	169625	84544	2	0.300	A	A	A	A
WAV	169627	84545	2	0.300	A	A	A	A
WAV	169913	84688	2	0.300	A	A	A	A
WAV	169917	84690	2	0.300	A	A	A	A
WAV	169919	84691	2	0.300	A	A	A	A
WAV	170077	84770	2	0.300	A	A	A	A
WAV	170801	85132	2	0.300	A	A	A	A
WAV	170955	85209	2	0.300	A	A	A	A
WAV	170957	85210	2	0.300	A	A	A	A
WAV	170975	85219	2	0.300	A	A	A	A
WAV	171497	85480	2	0.300	A	A	A	A