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, 
  cscart_product_features_descriptions.yml2_variants_unit 
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 = 'ru' 
  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 = 'ru' 
WHERE 
  cscart_product_filters.status = 'A' 
  AND (
    cscart_product_filters.categories_path = '' 
    OR FIND_IN_SET(
      961, cscart_product_filters.categories_path
    )
  ) 
ORDER BY 
  cscart_product_filters.position, 
  cscart_product_filter_descriptions.filter

Query time 0.00090

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "cscart_product_filters.position, cscart_product_filter_descriptions.filter",
      "temporary_table": {
        "table": {
          "table_name": "cscart_product_filters",
          "access_type": "ALL",
          "rows": 8,
          "filtered": 100,
          "attached_condition": "cscart_product_filters.`status` = 'A' and (cscart_product_filters.categories_path = '' or find_in_set(961,cscart_product_filters.categories_path))"
        },
        "table": {
          "table_name": "cscart_product_filter_descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["filter_id", "lang_code"],
          "ref": ["admin_test.cscart_product_filters.filter_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(cscart_product_filter_descriptions.lang_code = 'ru')"
        },
        "table": {
          "table_name": "cscart_product_features",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["feature_id"],
          "ref": ["admin_test.cscart_product_filters.feature_id"],
          "rows": 1,
          "filtered": 100
        },
        "table": {
          "table_name": "cscart_product_features_descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["feature_id", "lang_code"],
          "ref": ["admin_test.cscart_product_filters.feature_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(cscart_product_features_descriptions.lang_code = 'ru')"
        }
      }
    }
  }
}