|Google Play:||Check if it's there|
Performance Tweaker is a simple app for tweaking CPU (Frequency, Governor, Voltage, Hotplug) and GPU (Frequency, Governor), the I/O Scheduler, Low Memory Killer, and Virtual Memory. It also includes a Build prop Editor and can monitor Battery or Wakelocks Stats (i.e spot rogue applications or sources which are causing battery drain). So it’s like BBS (which it’s indeed partly based upon) combined with CPUTuner and more.
Tracking: The application tracks and reports your activity to somewhere – usually either without your consent, or by default (i.e. you’d have to actively disable it). It’s commonly used for when developers obtain crash logs without the user’s consent, or when an app is useless without some kind of authentication.
NoSourceSince: Upstream source for this app is no longer available. Either the app went commercial, the repo was dropped, or it has moved to a location currently unknown to us. This usual means there won't be further updates unless the source reappears.