I need your help with a PS Vita issue with left analog stick slowing movement on all diagonal inputs.

[BBelmont]

As title suggests, I'm having a very big issue in which the PS Vita left analog stick is making characters walk slow and very stuttery whenever I input a diagonal movement. The steps taken to test this are the following:

-Tested Vita Hardware in all available applications, the sticks have absolutely no drift inputs, and they respond incredibly well to the movement diagonal or not.

-Applied the Left Stick To Right stick plugin to test if it was a thing with the "movement" stick only. And yes, it happened again with the right stick as the one for character movement.

-I think I deactivated and deleted reVita from ur0 tai.

Quirks I noticed with or without analogsenhancer is that on VitaTester the Vita is taking the Left Stick being all the way left as the 0:0 zone. With top left and down left inputs having lower inputs than top right and left right, but then again, the app is detecting and displaying the stick movement shockingly well and responsive.

Any idea on what I can do? This is on all games that have a 3Dimensional movement.

Some being Sly Cooper, Jack and Daxter, GTA, GOW, Persona 4.

I truly believe this is an issue of the firmware rather than stick drift.