How to adjust the working speed of pneumatic solenoid valve

The action of pneumatic solenoid valve is instantaneous. Theoretically, the operating speed of the solenoid valve can be controlled by controlling the air intake and air source pressure, but it is basically difficult to distinguish with the naked eye, thinking that the solenoid valve cannot be opened if the pressure is too low, and it will act instantly if it is slightly higher. Specifically, you can find Shanghai Chuannai Valve, which has more experience in this field.