http://forum.androidcentral.com/lg-optimus-s/46789-oc-kernel-xionia-kernel-2-6-32-36-a.html

Tweaked OC Kernel. Alot of tweaks to the compile process.

Features:
OC up to 864mhz
Optimized for ARM1136JF-S, the processor core in our Optimus S
tun.ko module
Tweaked for Speed

How To Use:
1) Download the Zip
2) Put the zip on the root of your SD card. Do not open the ZIP and do not extract the ZIP.
3) shut your phone off then put it into recovery by holding the volume down + home + Power key until you hit the recovery screen.
4) Select flash ZIP from SD card
5) Select the zip you downloaded and put on your SD card (steps 1 & 2)
6) Confirm you would like to flash the zip, reboot phone after complete

หวังว่าคงจะใช่ Optimus One นะครับ