The keyboard's physical mechanism determines the spacebar clicker speed and cannot be easily changed. However, there are things you can do to make your spacebar feel more responsive or comfortable to press:
Clean your keyboard: Dust, dirt, and debris can accumulate in the spaces between the keys and make them feel sluggish or unresponsive. Use a can of compressed air or a soft bristle brush to clean your keyboard regularly.
Adjust keyboard sensitivity: Some keyboards have adjustable settings that allow you to change the force required to register a key press. Check your keyboard's user manual or settings menu to see if this option is available.
Replace the keyboard: If it is old or badly damaged, it may be time to replace it. A new keyboard may feel more responsive and comfortable to type on and may even have additional features or functionality that can improve your typing experience.
Note that attempting to repair the physical mechanism of your keyboard yourself can be dangerous and may void your warranty. If you are experiencing significant problems with your keyboard, it is better to consult a professional technician or replace the keyboard altogether.