EDIT for more info: I tried reflashing my ROM but it didn't work. I'm on stock ROM with root and xposed installed. It happened suddenly today. I have been using the same phone with same settings/everything all the time. I don't tamper with my phone much too. I just picked it up and saw this. Maybe someone picked up my phone and messed around with it
EDIT 2: turns out someone turned on High Performance mode for my phone xD turned it off and now its all back. Hope this thread helps someone confused like me in future!