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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 (
    83918, 83651, 83650, 83649, 83648, 83611, 
    83610, 83570, 83567, 104621, 83838, 
    83837, 83647, 83646, 83645, 83344, 
    83921, 83081, 83008, 83007
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00116

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	166550	83007	1	0.000	A	A	A	A
MP3	166552	83008	1	0.000	A	A	A	A
MP3	166698	83081	1	0.000	A	A	A	A
MP3	167224	83344	1	0.000	A	A	A	A
MP3	167670	83567	1	0.000	A	A	A	A
MP3	167676	83570	1	0.000	A	A	A	A
MP3	167756	83610	1	0.000	A	A	A	A
MP3	167758	83611	1	0.000	A	A	A	A
MP3	167826	83645	1	0.000	A	A	A	A
MP3	167828	83646	1	0.000	A	A	A	A
MP3	167830	83647	1	0.000	A	A	A	A
MP3	167832	83648	1	0.000	A	A	A	A
MP3	167834	83649	1	0.000	A	A	A	A
MP3	167836	83650	1	0.000	A	A	A	A
MP3	167838	83651	1	0.000	A	A	A	A
MP3	168210	83837	1	0.000	A	A	A	A
MP3	168212	83838	1	0.000	A	A	A	A
MP3	168372	83918	1	0.000	A	A	A	A
MP3	168378	83921	1	0.000	A	A	A	A
MP3	209778	104621	1	0.000	A	A	A	A
WAV	166551	83007	2	0.300	A	A	A	A
WAV	166553	83008	2	0.300	A	A	A	A
WAV	166699	83081	2	0.300	A	A	A	A
WAV	167225	83344	2	0.300	A	A	A	A
WAV	167671	83567	2	0.300	A	A	A	A
WAV	167677	83570	2	0.300	A	A	A	A
WAV	167757	83610	2	0.300	A	A	A	A
WAV	167759	83611	2	0.300	A	A	A	A
WAV	167827	83645	2	0.300	A	A	A	A
WAV	167829	83646	2	0.300	A	A	A	A
WAV	167831	83647	2	0.300	A	A	A	A
WAV	167833	83648	2	0.300	A	A	A	A
WAV	167835	83649	2	0.300	A	A	A	A
WAV	167837	83650	2	0.300	A	A	A	A
WAV	167839	83651	2	0.300	A	A	A	A
WAV	168211	83837	2	0.300	A	A	A	A
WAV	168213	83838	2	0.300	A	A	A	A
WAV	168373	83918	2	0.300	A	A	A	A
WAV	168379	83921	2	0.300	A	A	A	A
WAV	209779	104621	2	0.300	A	A	A	A