SELECT 
  cscart_product_filters.feature_id, 
  cscart_product_filters.filter_id, 
  cscart_product_filter_descriptions.filter 
FROM 
  cscart_product_filters 
  INNER JOIN cscart_product_filter_descriptions on (
    cscart_product_filters.filter_id = cscart_product_filter_descriptions.filter_id 
    AND cscart_product_filter_descriptions.lang_code = 'en'
  ) 
WHERE 
  cscart_product_filters.feature_id in (3018, 4719, 4720) 
ORDER BY 
  cscart_product_filters.position, 
  cscart_product_filter_descriptions.filter

Query time 0.00150

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.14"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_product_filter_descriptions",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY"
            ],
            "rows_examined_per_scan": 12,
            "rows_produced_per_join": 1,
            "filtered": "10.00",
            "cost_info": {
              "read_cost": "1.60",
              "eval_cost": "0.12",
              "prefix_cost": "1.72",
              "data_read_per_join": "940"
            },
            "used_columns": [
              "filter_id",
              "lang_code",
              "filter"
            ],
            "attached_condition": "(`s2cart`.`cscart_product_filter_descriptions`.`lang_code` = 'en')"
          }
        },
        {
          "table": {
            "table_name": "cscart_product_filters",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "feature_id"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "filter_id"
            ],
            "key_length": "3",
            "ref": [
              "s2cart.cscart_product_filter_descriptions.filter_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "50.00",
            "cost_info": {
              "read_cost": "0.30",
              "eval_cost": "0.06",
              "prefix_cost": "2.14",
              "data_read_per_join": "43"
            },
            "used_columns": [
              "filter_id",
              "feature_id",
              "position"
            ],
            "attached_condition": "(`s2cart`.`cscart_product_filters`.`feature_id` in (3018,4719,4720))"
          }
        }
      ]
    }
  }
}