I don’t see any reason for there to be a delay when I click on the Start Menu. Effects are pretty, but I wouldn’t click on it if I didn’t have business inside, so lets get it open and get moving. The default speed can be adjusted with a quick registry entry.
The default value is 400. Set it to 0 and the delay is gone, but it will be nearly impossible to move the mouse fast enough not to activate [All Programs] if you mouse over it in route to your final selection. It’s easy to train yourself to move the pointer to the right after clicking Start to avoid activating All Programs. Pick a number that suits your style and make the change, then test it until you find a good compromise between speed and usability.
Okay here’s the method:
Click Start, Run and type in Regedit
Registry Key: HKEY_CURRENT_USER\Control Panel\Desktop
Look fo the key named MenuShowDelay
Setting for Value Data: (Default = 400 / Adjust to Preference Preferably 0)
Exit Registry and Reboot