Wacom Pen Pressure working irregularly

Hi there.

When I use my wacom pen the pen strokes will randomly ignore the pen-pressure. At one or multiple turns the pen-pressure will work as normal and all of a sudden I will get this abnormally thick and ugly stroke displayed in all its inelegance. What I've noticed is that the little visual preview-thing in the bottom of the brush settings window will display the brush with and without a pen-pressure effect in direct reference to whatever the current pen-stroke looks like (as seen in the images below).

I've tried installing, uninstalling and reinstalling drivers and all that stuff (both wacom and for my graphics card). I've also tried countless solutions for problems similar to this one with the only one working being the text document-fix; meaning shoving in a PSUserConfig.txt with the line UseSystemStylus 0 in the photoshop settings folder. The only problem is that the line UseSystemStylus 0 makes the pen operate extremly laggy. So I'm obviously not a superfan of that solution.

My device is the Wacom Bamboo CTH-470 and I'm super happy and grateful for any type of help!