yesterday my device rebooted on its own the third or fourth time (in 5 days), just now it started flapping powersaving modes then I deactivated all settings for powersaving in profilematic, still it flapped, then I deactivated profilematic and it stopped. after that the homescreens hung/froze profilematic settings didn't respond properly and so on, after a reboot profilematic did not come up anymore... I uninstalled for now to see if anything of this behaviour comes back without it