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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 (
    81706, 81677, 81676, 81674, 81673, 81672, 
    81671, 81670, 81669, 81668, 81667, 
    81666, 82118, 82080, 82079, 82078, 
    82077, 82076, 82075, 82074
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00100

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	163868	81666	1	0.000	A	A	A	A
MP3	163870	81667	1	0.000	A	A	A	A
MP3	163872	81668	1	0.000	A	A	A	A
MP3	163874	81669	1	0.000	A	A	A	A
MP3	163876	81670	1	0.000	A	A	A	A
MP3	163878	81671	1	0.000	A	A	A	A
MP3	163880	81672	1	0.000	A	A	A	A
MP3	163882	81673	1	0.000	A	A	A	A
MP3	163884	81674	1	0.000	A	A	A	A
MP3	163888	81676	1	0.000	A	A	A	A
MP3	163890	81677	1	0.000	A	A	A	A
MP3	163948	81706	1	0.000	A	A	A	A
MP3	164684	82074	1	0.000	A	A	A	A
MP3	164686	82075	1	0.000	A	A	A	A
MP3	164688	82076	1	0.000	A	A	A	A
MP3	164690	82077	1	0.000	A	A	A	A
MP3	164692	82078	1	0.000	A	A	A	A
MP3	164694	82079	1	0.000	A	A	A	A
MP3	164696	82080	1	0.000	A	A	A	A
MP3	164772	82118	1	0.000	A	A	A	A
WAV	163869	81666	2	0.300	A	A	A	A
WAV	163871	81667	2	0.300	A	A	A	A
WAV	163873	81668	2	0.300	A	A	A	A
WAV	163875	81669	2	0.300	A	A	A	A
WAV	163877	81670	2	0.300	A	A	A	A
WAV	163879	81671	2	0.300	A	A	A	A
WAV	163881	81672	2	0.300	A	A	A	A
WAV	163883	81673	2	0.300	A	A	A	A
WAV	163885	81674	2	0.300	A	A	A	A
WAV	163889	81676	2	0.300	A	A	A	A
WAV	163891	81677	2	0.300	A	A	A	A
WAV	163949	81706	2	0.300	A	A	A	A
WAV	164685	82074	2	0.300	A	A	A	A
WAV	164687	82075	2	0.300	A	A	A	A
WAV	164689	82076	2	0.300	A	A	A	A
WAV	164691	82077	2	0.300	A	A	A	A
WAV	164693	82078	2	0.300	A	A	A	A
WAV	164695	82079	2	0.300	A	A	A	A
WAV	164697	82080	2	0.300	A	A	A	A
WAV	164773	82118	2	0.300	A	A	A	A