On my Ubuntu 11.10 system, scrolling through pages using Google Chrome was terribly slow using the mouse wheel.
Here is an easy way to fix this: Launch Chrome with the parameter –scroll-pixels=n, where n is the number of pixels to scroll. For example:
To integrate this parameter into the desktop shortcut link, open the following file as root: /usr/share/applications/google-chrome.desktop
Search for the line “Exec=/opt/google/chrome/google-chrome %U” and replace it with “Exec=/opt/google/chrome/google-chrome –scroll-pixels=400 %U”. Now, you can easily start Chrome using your desktop shortcut and the mouse scroll speed should be improved.