How to enable show CPU usage nougat 7.0 & 7.1 device
PVRMonitor Displays real-time CPU and GPU performance for PowerVR enabled Android Devices - CNX Software
The 5 Best Software You can Use to Monitor a Game's FPS in Windows
How to See FPS, CPU Load & Other Performance Metrics for Any Game in One UI 3.0 « Android :: Gadget Hacks
Enable Or Disable Show CPU Usage on Android
You can enable CPU/GPU usage, FPS overlays, Latency info and more for any application by going to developer options and scrolling down to the "GPUWatch" setting. : r/galaxys10
CPU usage overlay automatically turned on by itself
battery - Overheating device with random apps spiking CPU usage - Android Enthusiasts Stack Exchange