SELECT 
  cscart_categories.category_id, 
  cscart_categories.parent_id, 
  cscart_categories.id_path, 
  cscart_category_descriptions.category, 
  cscart_categories.position, 
  cscart_categories.status, 
  cscart_categories.company_id, 
  cscart_seo_names.name as seo_name, 
  cscart_seo_names.path as seo_path 
FROM 
  cscart_categories 
  LEFT JOIN cscart_category_descriptions ON cscart_categories.category_id = cscart_category_descriptions.category_id 
  AND cscart_category_descriptions.lang_code = 'se' 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = cscart_categories.category_id 
  AND cscart_seo_names.type = 'c' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'se' 
  AND cscart_seo_names.company_id = cscart_categories.company_id 
WHERE 
  1 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A') 
  AND cscart_categories.id_path LIKE '500/%' 
  AND cscart_categories.company_id = 2 
ORDER BY 
  cscart_categories.is_trash asc, 
  cscart_categories.position asc, 
  cscart_category_descriptions.category asc

Query time 0.00082

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_categories range c_status,id_path,idx_id_path id_path 767 7 Using index condition; Using where; Using temporary; Using filesort
1 SIMPLE cscart_category_descriptions eq_ref PRIMARY PRIMARY 9 mahm3t_cs443.cscart_categories.category_id,const 1 Using where
1 SIMPLE cscart_seo_names eq_ref PRIMARY,dispatch PRIMARY 210 mahm3t_cs443.cscart_categories.category_id,const,const,const,const 1 Using where

Result

category_id parent_id id_path category position status company_id seo_name seo_path
867 865 500/865/867 3D Gipspaneler 10 A 2 3d-gipspaneler 500/865
492 500 500/492 Dekorativ Sten 10 A 2 dekorativ-sten 500
493 492 500/492/493 Dekorsten inomhus 10 A 2 dekorsten-inomhus 500/492
497 865 500/865/497 3D Träpaneler 20 A 2 3d-trapaneler 500/865
494 492 500/492/494 Dekorsten utomhus 20 A 2 dekorsten-utomhus 500/492
865 500 500/865 Väggpaneler 20 A 2 vaggpaneler 500
495 492 500/492/495 Dekortegel 30 A 2 dekortegel 500/492
917 865 500/865/917 Klädda paneler 30 A 2 upholstered-panels-se 500/865
496 492 500/492/496 Natursten 40 A 2 natursten 500/492
499 492 500/492/499 Tillbehör 70 A 2 tillbehoer-dekorsten 500/492