问PyMongo瓶应用中的慢度

EN

app = Flask(__name__)
app.logger.setLevel(logging.INFO)

DBNAME = 'DBNAME as String'
CONNSTRING = 'CONNECTION as String'

class mongoDB:
    def __init__(self):
        try:
            self.client = MongoClient(CONNSTRING, maxPoolSize=None)
            self.database = self.client[DBNAME]
            app.logger.info('Mongo Connection Established')
        except Exception as e:
            app.logger.warning('Mongo Connection could not be established')
            app.logger.warning('Error Message: ' + str(e))

    def close_connection(self):
        try:
            self.client.close()
        except Exception as e:
            app.logger.warning('connection failed to close')
            app.logger.warning('Error Message: ' + str(e))

@app.route('/save', methods=['POST'])
def save():
    data_info = flask.request.get_json()
    
    try:
        db = mongoDB()
        image_collection = db.database['DUMMY_COLLECTION']
        image_collection.insert_one({'VALUE_ID' : data_info['value1'], 'VALUE_STRING' : data_info['value2']})
        app.logger.info('Inserted Successfully')
        return {'message': 'Success'}, 200, {'Content-Type': 'application/json'}
    except Exception as e:
        app.logger.error('Error Adding data to Mongo: ' + str(e))
        return {'message': 'Error'}, 500, {'Content-Type': 'application/json'}
    finally:
        db.close_connection()
        app.logger.info('connection closed')

if __name__ == '__main__':
    app.run()