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 = 'en' 
  AND cscart_product_tabs.company_id = 1 
ORDER BY 
  position

Query time 0.00097

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "cscart_product_tabs.position",
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "cscart_product_tabs_descriptions",
              "access_type": "ALL",
              "possible_keys": ["PRIMARY"],
              "rows": 10,
              "filtered": 100,
              "attached_condition": "cscart_product_tabs_descriptions.lang_code = 'en'"
            }
          },
          {
            "table": {
              "table_name": "cscart_product_tabs",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "3",
              "used_key_parts": ["tab_id"],
              "ref": ["u358358020_main.cscart_product_tabs_descriptions.tab_id"],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "cscart_product_tabs.company_id = 1"
            }
          },
          {
            "table": {
              "table_name": "cscart_bm_blocks",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "4",
              "used_key_parts": ["block_id"],
              "ref": ["u358358020_main.cscart_product_tabs.block_id"],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "trigcond(cscart_bm_blocks.block_id = cscart_product_tabs.block_id)"
            }
          }
        ]
      }
    }
  }
}