Im using the latest siyah kernel 7.9 i believe with the latest aokp 4.2.1 rom, and everytime i try to select the performance profile my phone will freeze at some point while booting up. Ive also tried changing to the performance and the extreme performance profiles via Stweaks and when i do my phone freezes immediately afterwards. Ive tried all the usual trouble shooting stuff reinstalled the kernel wipe cache, dalvik etc, same results. Anyone else have this issue? Any advice for a solution would be appreciated. Thanks.