Originally Posted by
Bat
That is suspicious. If this is a factory reset, and if you're certain that the laptop is still performing poorly while it's not connected to the internet, then you could definitely try the route of removing the superfluous add-ons Microsoft tries to sneak onto your account after installation. You might've noticed various games, social media apps and so on cluttering your computer after you finished setting things up. Those kinds of things tend to sneak resources out from under you as they phone home and shovel content onto your screen. Remove everything that you don't want installed, and hopefully that can help a bit.