2 days sounds good. OnDemand works better for me like 5%+ but you need to tweak all the levels after VSEL to see some differences. Try asking, searching for a thread where they tweak all the levels and it's reported to give a boost.
HTC ONE M7 -Rocking Android Revolution HD with Sense 6 and ElementalX Kernel
Past:LG Optimus G aka "No updates"
The almighty Moto Defy with CM10.1 by Quarx2k!!