SELECT 
  cscart_product_filters.feature_id, 
  cscart_product_filters.filter_id, 
  cscart_product_filters.field_type, 
  cscart_product_filters.round_to, 
  cscart_product_filters.abt__ut2_display_desktop as display, 
  cscart_product_filters.display_count, 
  cscart_product_filter_descriptions.filter, 
  cscart_product_features.feature_type, 
  cscart_product_features.filter_style, 
  cscart_product_features_descriptions.prefix, 
  cscart_product_features_descriptions.suffix 
FROM 
  cscart_product_filters 
  LEFT JOIN cscart_product_filter_descriptions ON cscart_product_filter_descriptions.filter_id = cscart_product_filters.filter_id 
  AND cscart_product_filter_descriptions.lang_code = 'en' 
  LEFT JOIN cscart_product_features ON cscart_product_features.feature_id = cscart_product_filters.feature_id 
  LEFT JOIN cscart_product_features_descriptions ON cscart_product_features_descriptions.feature_id = cscart_product_filters.feature_id 
  AND cscart_product_features_descriptions.lang_code = 'en' 
WHERE 
  cscart_product_filters.status = 'A' 
  AND (
    cscart_product_filters.categories_path = '' 
    OR FIND_IN_SET(
      318, cscart_product_filters.categories_path
    )
  ) 
ORDER BY 
  cscart_product_filters.position, 
  cscart_product_filter_descriptions.filter

Query time 0.00088

JSON explain

{
  "query_block": {
    "select_id": 1,
    "const_condition": "1",
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_filters",
          "access_type": "system",
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "cscart_product_filter_descriptions",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["filter_id", "lang_code"],
          "ref": ["const", "const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "cscart_product_features",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["feature_id"],
          "ref": ["const"],
          "rows": 0,
          "filtered": 0,
          "unique_row_not_found": true
        }
      },
      {
        "table": {
          "table_name": "cscart_product_features_descriptions",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["feature_id", "lang_code"],
          "ref": ["const", "const"],
          "rows": 0,
          "filtered": 0,
          "unique_row_not_found": true
        }
      }
    ]
  }
}