Your TVS Victor's overall performance is lower than required and the major reasons behind the fault can be in the air filter and the engine oil of the bike. Both these things heavily effect the performacne and mileage. Cleaning the air filter or replacing it incase its very dirty can lead to a better mileage and higher performance statistics. Also the synthetic engine oil for your motorcycle can lead to a lower wear and tear of your motorcycle, making it equally performing for a long period of time.