Intermitently lagging in Boox note air 4C

[pedroguil-as]

Describe the bug

When writing with the stylus in my Boox Note Air 4c, the app begins to lag randomly. Usually, minimizing and maximizing the app stops the lag, but it randomly returns

To reproduce

Randomly

Expected behavior

Avoid this lagging

Saber version

v1.34.2

Device

• Device: Boox Note Air 4c
• OS: Android

Anything else?

No response

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• I have searched for similar issues (both open and closed) and cannot find a duplicate
• This is not an automated submission and has been written by a human.

[szimszon]

Happens also with Air 5C...

[szimszon]

I can trigger this behavior when I tap the text input tool and switch back to pen.