What exactly is the function of the Wacom PCB in the device?

I'm trying to figure out if this component may be whats causing a skipping in my pen strokes in the middle of the screen. Does anyone know what this component does?

as far as i can tell it's a bridge between the wacom function of the tablet and the tablet itself, but i need to know if its possible this could affect digitizer function say if it had ambient corrosion or weak voltage