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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 (
    79159, 79138, 79451, 79417, 79432, 79223, 
    79001, 79340, 79173, 79235, 79233, 
    79232, 79259, 79202, 79201, 79200, 
    79199, 79198, 79197, 79196
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00089

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	158538	79001	1	0.000	A	A	A	A
MP3	158812	79138	1	0.000	A	A	A	A
MP3	158854	79159	1	0.000	A	A	A	A
MP3	158882	79173	1	0.000	A	A	A	A
MP3	158928	79196	1	0.000	A	A	A	A
MP3	158930	79197	1	0.000	A	A	A	A
MP3	158932	79198	1	0.000	A	A	A	A
MP3	158934	79199	1	0.000	A	A	A	A
MP3	158936	79200	1	0.000	A	A	A	A
MP3	158938	79201	1	0.000	A	A	A	A
MP3	158940	79202	1	0.000	A	A	A	A
MP3	158982	79223	1	0.000	A	A	A	A
MP3	159000	79232	1	0.000	A	A	A	A
MP3	159002	79233	1	0.000	A	A	A	A
MP3	159006	79235	1	0.000	A	A	A	A
MP3	159054	79259	1	0.000	A	A	A	A
MP3	159216	79340	1	0.000	A	A	A	A
MP3	159370	79417	1	0.000	A	A	A	A
MP3	159400	79432	1	0.000	A	A	A	A
MP3	159438	79451	1	0.000	A	A	A	A
WAV	158539	79001	2	0.300	A	A	A	A
WAV	158813	79138	2	0.300	A	A	A	A
WAV	158855	79159	2	0.300	A	A	A	A
WAV	158883	79173	2	0.300	A	A	A	A
WAV	158929	79196	2	0.300	A	A	A	A
WAV	158931	79197	2	0.300	A	A	A	A
WAV	158933	79198	2	0.300	A	A	A	A
WAV	158935	79199	2	0.300	A	A	A	A
WAV	158937	79200	2	0.300	A	A	A	A
WAV	158939	79201	2	0.300	A	A	A	A
WAV	158941	79202	2	0.300	A	A	A	A
WAV	158983	79223	2	0.300	A	A	A	A
WAV	159001	79232	2	0.300	A	A	A	A
WAV	159003	79233	2	0.300	A	A	A	A
WAV	159007	79235	2	0.300	A	A	A	A
WAV	159055	79259	2	0.300	A	A	A	A
WAV	159217	79340	2	0.300	A	A	A	A
WAV	159371	79417	2	0.300	A	A	A	A
WAV	159401	79432	2	0.300	A	A	A	A
WAV	159439	79451	2	0.300	A	A	A	A