In Windows 10, the user cannot adjust the transparency level of the taskbar. You can only make it transparent or completely opaque using the Settings app. Here is an alternative solution which involves the famous free third party app, Classic Shell.
Many Windows 10 complain that their Start menu is laggy and slow. It opens slowly and sometimes it doesn't open at all. This is because the Windows 10 menu uses XAML and WinRT APIs. Recently, I posted a tutorial on how to speed up the Windows 10 Start menu without using third party tools, but it just cannot be as fast as a native app written in C++. Today, I would like to share with you an alternative way, which involves the famous third party app, Classic Shell. Not only does it have far more customization but it operates much faster too.