Issues with touch screen on a KOA3, jailbroken with firmware 5.13.3

[kalyy]

Hi everyone!
I received a kindle oasis two days ago. And for these couple of days I've notificied issues with the touch screen.
One time I tried to change pages and it kept moving more than one page, at one time I tried to open the light settings and it didn't respond when I tapped in the icon, and just now I wanted to open a definition and it changed page instead, I had to try like 5 times for it to work correctly.
I was thinking that maybe it's a bug on that firmware?
Thanks in advance for all your help.