I finally found some time to move my docker containers to a new device and update to LE12 and it works! PCSX emulation, even without bios installed, works perfectly fine!
So anyone having the same trouble on 11, you just need to update. I also needed to remove all emulators and Retroarch support addon to update them, for some reason it just wouldn't update if I didn't. Once I did that it all worked fine.
Thanks to everyone for their support, and ilmich for givig it a try and telling me there is a new LE version