SELECT 
  cscart_seo_names.object_id AS product_id, 
  cscart_seo_names.name AS seo_name, 
  cscart_seo_names.path AS seo_path 
FROM 
  cscart_seo_names 
WHERE 
  cscart_seo_names.object_id IN (
    2326, 2384, 2391, 2408, 2437, 2448, 2480, 
    788, 1559, 1578, 1599, 1608
  ) 
  AND cscart_seo_names.type = "p" 
  AND cscart_seo_names.dispatch = "" 
  AND cscart_seo_names.lang_code = 'en'

Query time 0.00095

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": ["PRIMARY", "dispatch"],
      "key": "PRIMARY",
      "key_length": "206",
      "used_key_parts": ["object_id", "type", "dispatch", "lang_code"],
      "rows": 12,
      "filtered": 100,
      "index_condition": "cscart_seo_names.object_id in (2326,2384,2391,2408,2437,2448,2480,788,1559,1578,1599,1608) and cscart_seo_names.`type` = 'p' and cscart_seo_names.dispatch = '' and cscart_seo_names.lang_code = 'en'"
    }
  }
}

Result

product_id seo_name seo_path
788 shadowsong-alliance 43/44
1559 bladefist-horde-en 43/44
1578 burning-steppes-alliance-en 43/44
1599 daggerspine-horde-en 43/44
1608 darkspear-alliance-en 43/44
2326 neptulon-horde-en-2 43/44
2384 shendralar-horde-en-2 43/44
2391 spinebreaker-alliance-en-2 43/44
2408 suramar-horde-en-2 43/44
2437 throkferoth-alliance-en-2 43/44
2448 trollbane-horde-en-2 43/44
2480 xavius-horde-en-2 43/44