SELECT 
  a.variant_id, 
  a.option_id, 
  a.position, 
  a.modifier, 
  a.modifier_type, 
  a.weight_modifier, 
  a.weight_modifier_type, 
  b.variant_name, 
  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 a.variant_id = b.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 = 2 
WHERE 
  a.option_id IN (1087, 1088) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00064

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 13 Using index condition; Using filesort
1 SIMPLE b eq_ref PRIMARY PRIMARY 9 mahm3t_cs443.a.variant_id,const 1 Using where
1 SIMPLE shared_option_variants eq_ref PRIMARY,company_id PRIMARY 7 mahm3t_cs443.a.variant_id,const 1

Result

variant_id option_id position modifier modifier_type weight_modifier weight_modifier_type variant_name
20620 1088 110 0.000 A 0.000 A Thermo | for tiled coverings (up to 90mm height)
20596 1087 509 0.000 A 0.000 A 02 | 55x98 cm
20597 1087 511 0.000 A 0.000 A 16 | 55x118 cm
20598 1087 609 0.000 A 0.000 A 03 | 66x98 cm
20599 1087 611 0.000 A 0.000 A 04 | 66x118 cm
20600 1087 614 0.000 A 0.000 A 14 | 66x140 cm
20601 1087 709 0.000 A 0.000 A 05 | 78x98 cm
20602 1087 711 0.000 A 0.000 A 06 | 78x118 cm
20603 1087 714 0.000 A 0.000 A 07 | 78x140 cm
20604 1087 716 0.000 A 0.000 A 13 | 78x160 cm
20605 1087 718 0.000 A 0.000 A 40 | 78x180 cm
20606 1087 909 0.000 A 0.000 A 15 | 94x98 cm
20607 1087 911 0.000 A 0.000 A 08 | 94x118 cm
20608 1087 914 0.000 A 0.000 A 09 | 94x140 cm
20609 1087 916 0.000 A 0.000 A 80 | 94x160 cm
20610 1087 918 0.000 A 0.000 A 41 | 94x180 cm
20611 1087 1109 0.000 A 0.000 A 20 | 114x98 cm
20612 1087 1111 0.000 A 0.000 A 10 | 114x118 cm
20613 1087 1114 0.000 A 0.000 A 11 | 114x140 cm
20614 1087 1116 0.000 A 0.000 A 50 | 114x160 cm
20615 1087 1309 0.000 A 0.000 A 12 | 134x98 cm
20616 1087 1311 0.000 A 0.000 A 18 | 134x118 cm
20617 1087 1314 0.000 A 0.000 A 17 | 134x140 cm