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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 (
    99707, 99706, 100623, 100622, 100066, 
    100065, 100064, 100063, 99700, 99651, 
    100430, 100399, 100274, 100273, 100272, 
    100271, 100270, 100269, 99650, 99614
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00113

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	199764	99614	1	0.000	A	A	A	A
MP3	199836	99650	1	0.000	A	A	A	A
MP3	199838	99651	1	0.000	A	A	A	A
MP3	199936	99700	1	0.000	A	A	A	A
MP3	199948	99706	1	0.000	A	A	A	A
MP3	199950	99707	1	0.000	A	A	A	A
MP3	200662	100063	1	0.000	A	A	A	A
MP3	200664	100064	1	0.000	A	A	A	A
MP3	200666	100065	1	0.000	A	A	A	A
MP3	200668	100066	1	0.000	A	A	A	A
MP3	201074	100269	1	0.000	A	A	A	A
MP3	201076	100270	1	0.000	A	A	A	A
MP3	201078	100271	1	0.000	A	A	A	A
MP3	201080	100272	1	0.000	A	A	A	A
MP3	201082	100273	1	0.000	A	A	A	A
MP3	201084	100274	1	0.000	A	A	A	A
MP3	201334	100399	1	0.000	A	A	A	A
MP3	201396	100430	1	0.000	A	A	A	A
MP3	201780	100622	1	0.000	A	A	A	A
MP3	201782	100623	1	0.000	A	A	A	A
WAV	199765	99614	2	0.300	A	A	A	A
WAV	199837	99650	2	0.300	A	A	A	A
WAV	199839	99651	2	0.300	A	A	A	A
WAV	199937	99700	2	0.300	A	A	A	A
WAV	199949	99706	2	0.300	A	A	A	A
WAV	199951	99707	2	0.300	A	A	A	A
WAV	200663	100063	2	0.300	A	A	A	A
WAV	200665	100064	2	0.300	A	A	A	A
WAV	200667	100065	2	0.300	A	A	A	A
WAV	200669	100066	2	0.300	A	A	A	A
WAV	201075	100269	2	0.300	A	A	A	A
WAV	201077	100270	2	0.300	A	A	A	A
WAV	201079	100271	2	0.300	A	A	A	A
WAV	201081	100272	2	0.300	A	A	A	A
WAV	201083	100273	2	0.300	A	A	A	A
WAV	201085	100274	2	0.300	A	A	A	A
WAV	201335	100399	2	0.300	A	A	A	A
WAV	201397	100430	2	0.300	A	A	A	A
WAV	201781	100622	2	0.300	A	A	A	A
WAV	201783	100623	2	0.300	A	A	A	A