Reduce Start Menu slide open Delay

The Start menu has a built-in delay of just under half a second. Set the delay to 0 for an instantaneous response.

But It Would Be better If You Set it to around 80

Start regedit (type regedit in run found on start menu)and navigate to this key:

HKEY_CURRENT_USER\Control Panel\Desktop\

Set the value of MenuShowDelay to 80 and exit regedit.