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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 (
    98639, 98638, 98637, 98636, 98635, 98634, 
    98633, 98632, 98631, 98630, 96547, 
    96546, 96545, 96517, 99157, 98614, 
    96485, 99143, 99040, 99039
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00143

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	193506	96485	1	0.000	A	A	A	A
MP3	193570	96517	1	0.000	A	A	A	A
MP3	193626	96545	1	0.000	A	A	A	A
MP3	193628	96546	1	0.000	A	A	A	A
MP3	193630	96547	1	0.000	A	A	A	A
MP3	197764	98614	1	0.000	A	A	A	A
MP3	197796	98630	1	0.000	A	A	A	A
MP3	197798	98631	1	0.000	A	A	A	A
MP3	197800	98632	1	0.000	A	A	A	A
MP3	197802	98633	1	0.000	A	A	A	A
MP3	197804	98634	1	0.000	A	A	A	A
MP3	197806	98635	1	0.000	A	A	A	A
MP3	197808	98636	1	0.000	A	A	A	A
MP3	197810	98637	1	0.000	A	A	A	A
MP3	197812	98638	1	0.000	A	A	A	A
MP3	197814	98639	1	0.000	A	A	A	A
MP3	198614	99039	1	0.000	A	A	A	A
MP3	198616	99040	1	0.000	A	A	A	A
MP3	198822	99143	1	0.000	A	A	A	A
MP3	198850	99157	1	0.000	A	A	A	A
WAV	193507	96485	2	0.300	A	A	A	A
WAV	193571	96517	2	0.300	A	A	A	A
WAV	193627	96545	2	0.300	A	A	A	A
WAV	193629	96546	2	0.300	A	A	A	A
WAV	193631	96547	2	0.300	A	A	A	A
WAV	197765	98614	2	0.300	A	A	A	A
WAV	197797	98630	2	0.300	A	A	A	A
WAV	197799	98631	2	0.300	A	A	A	A
WAV	197801	98632	2	0.300	A	A	A	A
WAV	197803	98633	2	0.300	A	A	A	A
WAV	197805	98634	2	0.300	A	A	A	A
WAV	197807	98635	2	0.300	A	A	A	A
WAV	197809	98636	2	0.300	A	A	A	A
WAV	197811	98637	2	0.300	A	A	A	A
WAV	197813	98638	2	0.300	A	A	A	A
WAV	197815	98639	2	0.300	A	A	A	A
WAV	198615	99039	2	0.300	A	A	A	A
WAV	198617	99040	2	0.300	A	A	A	A
WAV	198823	99143	2	0.300	A	A	A	A
WAV	198851	99157	2	0.300	A	A	A	A