How to increase mouse scroll speed - explained for begginers?

Solution 1:

To change the mouse parameters:

• list the peripherals, note the good number with the device name of the mouse!

    xinput list
  

• list parameters from peripheral number 9

    xinput list-props 9
  

• set the acceleration of peripheral 9 to value 3. The higher the value is, the more you divide the acceleration. Acceleration is maximum for a value equal to 1. The "basis" value seems to be 1.7, for me...

    xinput set-prop 9 'Device Accel Constant Deceleration' 3
  

To permanently set the change :
A hidden file in your directory is ".profile" (Ctrl+H to see hidden files) Double click on it and open it. Copy paste the previous command at the end. That's it!

Source

Hope it will work.