SELECT 
  cscart_et_featured_product_banner_tabs_tabs.tab_id, 
  cscart_et_featured_product_banner_tabs_tabs.position, 
  cscart_et_featured_product_banner_tabs_tabs.data as q_tabs, 
  cscart_et_featured_product_banner_tabs_tabs_data.data_id, 
  cscart_et_featured_product_banner_tabs_tabs_data.data as q_tabs_data 
FROM 
  cscart_et_featured_product_banner_tabs_tabs 
  LEFT JOIN cscart_et_featured_product_banner_tabs_tabs_data ON cscart_et_featured_product_banner_tabs_tabs_data.tab_id = cscart_et_featured_product_banner_tabs_tabs.tab_id 
  AND cscart_et_featured_product_banner_tabs_tabs_data.lang_code = 'en' 
WHERE 
  1 
  AND cscart_et_featured_product_banner_tabs_tabs.block_id = '131' 
ORDER BY 
  position asc

Query time 0.00218

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "125.08"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "27.40"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_et_featured_product_banner_tabs_tabs",
            "access_type": "ALL",
            "rows_examined_per_scan": 274,
            "rows_produced_per_join": 27,
            "filtered": "10.00",
            "cost_info": {
              "read_cost": "59.32",
              "eval_cost": "5.48",
              "prefix_cost": "64.80",
              "data_read_per_join": "657"
            },
            "used_columns": [
              "tab_id",
              "block_id",
              "position",
              "data"
            ],
            "attached_condition": "(`webmarco`.`cscart_et_featured_product_banner_tabs_tabs`.`block_id` = '131')"
          }
        },
        {
          "table": {
            "table_name": "cscart_et_featured_product_banner_tabs_tabs_data",
            "access_type": "eq_ref",
            "possible_keys": [
              "tab_id"
            ],
            "key": "tab_id",
            "used_key_parts": [
              "tab_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "webmarco.cscart_et_featured_product_banner_tabs_tabs.tab_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 27,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "27.40",
              "eval_cost": "5.48",
              "prefix_cost": "97.68",
              "data_read_per_join": "657"
            },
            "used_columns": [
              "data_id",
              "tab_id",
              "data",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}