Speeding Up Start Menu
When you click the start button and select all programs, there is a delay in opening the submenu folder. To decrease that delay, you have to go into the registry to change the MenuShowDelay value.
1. Click Start > Run > Type regedit.exe > Click OK
2. Navigate to HKEY_CURRENT_USER\Control Panel\Desktop
3. In the right pane, look for MenuShowDelay
4. Double click MenuShowDelay
5. Change the Value from 400 to 0
6. Click OK
6. Click OK