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SELECT 
  cscart_images.*, 
  cscart_images_links.*, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_id AS images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.image_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'en' 
WHERE 
  cscart_images_links.object_type = 'product' 
  AND cscart_images_links.type = 'A' 
  AND cscart_images_links.object_id IN (
    69744, 70160, 70124, 70080, 69934, 70084, 
    70083, 70079, 70078, 69981, 69817, 
    69729, 69623, 70081, 69727, 69777, 
    69979, 69906, 69874, 69504, 69983, 
    68700, 69905, 69574, 69826, 69754, 
    69825, 69468, 69755, 69753, 69614, 
    69548, 68699, 69704, 69703, 69700, 
    69699, 69347, 69318, 69619
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00044

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	cscart_images_links	range	object_id	object_id	81		40	Using index condition; Using filesort
1	SIMPLE	cscart_images	eq_ref	PRIMARY	PRIMARY	4	toolboxdigitalshop_dev.cscart_images_links.image_id	1
1	SIMPLE	cscart_common_descriptions	eq_ref	PRIMARY	PRIMARY	108	toolboxdigitalshop_dev.cscart_images.image_id,const,const	1	Using where