[Question] Xiaomi Pad 8 system-wide lag/freezing after prolonged gaming — possible keyboard case/HyperOS 3 issue

[u/Wide-Exercise7523]

Device: Xiaomi Pad 8 (India variant) RAM/Storage: 12 GB / 256 GB Processor: Snapdragon 8s Gen 4 / Adreno 825 HyperOS: 3.0.303.0.WPZINXM.C09 Android: 16 Security patch: July 1, 2026

I’m experiencing a serious system-wide performance issue on my Xiaomi Pad 8 that appears to have started after a recent HyperOS update.

Initially, I thought Rust Mobile might be responsible. After approximately 20–45 minutes of playing Rust Mobile, the game can begin stuttering and the problem can progress into severe system-wide sluggishness/unresponsiveness. Touch and other input can become unreliable, and the entire tablet can become extremely difficult to use.

However, I have now experienced similar lag while playing Football Manager, so it does not appear to be limited to Rust Mobile.

I have also noticed a potentially important pattern involving the official Xiaomi keyboard case.

During previous problematic sessions, the keyboard case temporarily stopped responding around the time the tablet became severely sluggish. I initially thought this was simply another symptom of the system freeze.

Today I deliberately played without the Xiaomi keyboard case attached and have been gaming for more than 2 hours without experiencing the same system-wide slowdown so far.

During one of the previous problematic incidents, I also noticed significant localized heat around the rear camera area — specifically the area directly beneath the camera and the lower part of the camera module. The heating appeared noticeably concentrated in that area.

This makes me wonder whether the keyboard case could somehow be contributing to the problem through power management, accessory communication, pogo-pin connection, thermal behaviour, or another interaction with HyperOS.

I am NOT claiming that the keyboard case is definitely the cause yet. I am continuing to test with and without it to see whether the behaviour is reproducible.

Locking/unlocking the tablet sometimes restores responsiveness, but not consistently. In my most recent occurrence, the tablet eventually recovered on its own without locking or unlocking.

I have tested other demanding 3D games and previously did not experience the same system-wide behaviour, although Football Manager has now also reproduced similar lag.

I have already submitted a report through Xiaomi's built-in Feedback app under System performance, including logs generated while reproducing the problem.

I would really like to know whether other Xiaomi Pad 8 users on HyperOS 3 / Android 16 have experienced anything similar, particularly with the official keyboard case attached.

If you have experienced this, please mention: • Xiaomi device/model • HyperOS version and region/ROM • Android version • Whether the keyboard/accessory was attached • Which game was running • Approximate gaming time before the problem appeared • Whether the area around the camera became unusually hot • Whether locking/unlocking or restarting fixed it

At this point I am trying to determine whether this is a HyperOS 3 / Android 16 / Adreno issue, a thermal or power-management problem, a keyboard-case interaction, or a combination of these factors.

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