Can I show CPU & RAM usage in Oreo 8.0.0?

[AmazingAndroid]

I used an app called TINYCORE to qualitatively show CPU usage on my old phone (running Android 7). It doesn't work on my current phone though (running Android 8.0.0, unrooted). Anyone know of an app that WILL show CPU usage & RAM usage as a widget? Or is my problem related to Android 8.0.0? TIA