Hello Tony...
WB, as with any app that runs at boot time, will increase the time to some degree. WB (the service) is, by design, changing the whole UI look of Windows itself - is only natural that it would add some time to the boot.
That said, if you ever move to Windows 10 (just a better performing OS currently), I would be interested in what times you see under it.
Regards,
Sean Drohan
Stardock Support Manager