The background wallpaper on your desktop also decreases performance of your PC. Although it looks nice and adds to the visual appeal, but may reduce your system’s performance.
It sounds good when someone says wow nice wallpaper!! But it is not important to keep a nice wallpaper on your desktop if you consider the performance to be your top prioroty.
It’s just a reccommendation, You may want to keep your wallpaper as it is, and that’s okay.
Here is a screenshot of my desktop-
How to do it
1. Right click on your desktop.
2. Click on properties.
3. Click on desktop tab.
4. Now in the background section click none.
5. Click Apply
6. Click OK
Now you don’t have wallpaper on your desktop, hence is faster using less resources.