SELECT 
  *, 
  cscart_product_tabs.status as status, 
  cscart_product_tabs.block_id as block_id, 
  cscart_product_tabs.company_id as company_id, 
  cscart_product_tabs_descriptions.name as name 
FROM 
  cscart_product_tabs 
  LEFT JOIN cscart_product_tabs_descriptions ON cscart_product_tabs.tab_id = cscart_product_tabs_descriptions.tab_id 
  LEFT JOIN cscart_bm_blocks ON cscart_bm_blocks.block_id = cscart_product_tabs.block_id 
WHERE 
  cscart_product_tabs_descriptions.lang_code = 'ja' 
  AND cscart_product_tabs.company_id = 1 
ORDER BY 
  position

Query time 0.00072

JSON explain

{
  "query_block": {
    "select_id": 1,
    "ordering_operation": {
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_product_tabs",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY"
            ],
            "rows": 11,
            "filtered": 100,
            "attached_condition": "(`_testcscart`.`cscart_product_tabs`.`company_id` = 1)"
          }
        },
        {
          "table": {
            "table_name": "cscart_product_tabs_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "tab_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "_testcscart.cscart_product_tabs.tab_id",
              "const"
            ],
            "rows": 1,
            "filtered": 100,
            "index_condition": "(`_testcscart`.`cscart_product_tabs_descriptions`.`lang_code` = 'ja')"
          }
        },
        {
          "table": {
            "table_name": "cscart_bm_blocks",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id"
            ],
            "key_length": "4",
            "ref": [
              "_testcscart.cscart_product_tabs.block_id"
            ],
            "rows": 1,
            "filtered": 100,
            "attached_condition": "<if>(is_not_null_compl(cscart_bm_blocks), (`_testcscart`.`cscart_bm_blocks`.`block_id` = `_testcscart`.`cscart_product_tabs`.`block_id`), true)"
          }
        }
      ]
    }
  }
}