Full throttle for ~45 min after booting

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http://androidforums.com – I've noticed a strange issue with my phone. This has occured every since I've put my phone on a JB ROM (full data/cache/Dalvik wipe). I'm on the BAMF ROM and I even repeated a full wipe and reflash to see if that took care of the problem. The issue is that my phone's cpu runs at max allowable clock rate speed for about 45 minutes after any reboot. It burns about 15-20% of my battery during this period and then the phone behaves normally, unless I reboot again for some reason (not necessarily a flash) and then it'll run all out again for awhile. Does anyone know what's going on here? (General)