>>340720996
No matter what rig you have you can't get a virtual desktop to compare to a real-life monitor, you're using a fraction of the pixels to recreate a monitor in even the most high-res headsets on the market. If you increase the screen size in your VR environment to about 70" or so it starts to become more usable but if you compare a 24" monitor to a virtual equalivant the text will be muddy and not nearly as readable. 
Look into the gearvr lens mod if you are planning on using the vive for the foreseeable future. It'll give you a larger sweet spot and less godrays while making the image overall much sharper. Keep in mind that you're still dealing with a low res headset so no matter how good the lenses are you'll see have a lot of screen door effect.