You can regulate the speed of the scroll for each notch of mouse wheel movement as by default, the next three lines are displayed. You can adjust this and set a new value. Perform the following steps to do so:
Ctrl key from the keyboard. Perform the following steps to do so:
1. Click the Start button

and then click
Control Panel.
2. If the
View by: is
Category then click on
Hardware and Sound. Under
Devices and Printers, click
Mouse. If the
View by: is
Large icons or
Small icons then click on
Mouse.
3. Click the
Wheel tab. In the
Vertical Scrolling section, click the Up arrow to increase the number of lines or click the Down arrow to decrease the number of lines to change the number of lines to scroll for each notch of mouse wheel movement.
You may also a value directly in the number box.
4. Click
Apply and then click
OK.