[Q] (Q) Screen Ghosting on my Xperia Z Ultra topic

Hello dear XDA Devs,

Is there a fix for screen ghosting (random touch input) for a ZU? Mine often goes crazy if i have warm hands and come near to my device whith them. Same happens if i breath a little bit on the display.

Water marks are white and the device has Root + Locked bootloader

Thanks and Greedings
Lightbird