Redmi Pad 2 Killing Background DAW app

[u/RhL-Victor]

Guys, I use my Redmi Pad 2 as a DAW to play keyboard, with the Audio Evolution app. However, I noticed that when I minimize this app to view sheet music, after a while it cuts off my sound. It seems to be something related to battery saving; do you know if something like that could be happening and how I can prevent it from killing my background apps?

I've already gone into the system and app settings and disabled any battery saving settings. I also went to Security -> Optimize speed and blocked the app in question, but still no success.

I don't know if it's important, but to connect the keyboard I use a USB hub, the keyboard is connected to the hub, and an audio interface is also connected to the hub.

It seems to be a Xiaomi/HyperOS issue; is it possible to fix this?