Any S-off method without sunshine on Hboot 1.57 ?

Hey Guys.

I'm looking for a way to get S-off on my device without Sunshine cuz 25$ is way too much for me.
I want to install a 4.4 KitKat GPE Rom , I don't know why but my device feels so slow with lollipop.
Can't even properly game now.

Greetz,
R3VX