Cherry Mobile Razor - Changing the screen refresh rate

Cherry Mobile Razor - Changing the screen refresh rate

I have a Cherry Mobile Razor which I bought here in the Philippines. Specs
are as follows:
Mediatek MT6589 Quad-core Cortex A7 Processor
PowerVR SGX 544MP
1GB LPDDR2
540x960 qHD IPS LCD Screen
4GB Internal Storage -16 GB SDcard/ External Storage
Android Jellybean 4.2.1
1750mAh Battery
Now, it is a sweet device for it's price point. Catch is, the screen
refresh rate is locked to a snail-pace 22Hz. That's right, 22Hz. The big
difference between the amount of frames the device can process and the
rate it can spit images out on the screen is so big it shows as a laggy
platform for a myriad of 2D applications. You can even feel the "display
latency" when typing on the on-screen keyboard. The animations are fluid,
but laggy response can be felt.
The question:
I wish to edit the refresh rate setting on the device and set it to about
60Hz. I am rooted and read somewhere that settings are located in the
kernel. I am thinking of editing the boot.img in my device, either the
manual way via ADB or through a kernel kitchen. But before I do any sort
of unpacking, editing, then repacking - am I looking at this correctly?
Are there other things I need to consider and know like LCD screen specs,
etc.,... ????