I build a completely empty project with default target db and a cube, and the resulting camera FPS on the device (mi a1) is very low, the video playback is fine, though. This leads to very bad tracking. I tried adding a camera focus script, but it doesn't help. Is there a way to fix this or is the device too slow?
I'm using unity 2018.1 and vuforia 7.1.34 on windows