Honestly, at work when we get new Dell systems, many times I pull them from the box and format the drive and do a clean install of windows 10 straight off before I even set them up.
What CPU does your system have? And is it a laptop or desktop? Upgrading to 8gb of ram or now may help if you have an i3 or higher CPU. Also, replacing the hard drive with an SSD would make a huge difference.