App apk (unity) freezes every 5 seconds

Hello,

We have made a Unity application that we have incorporated into a Meta Quest 2.

We have already implemented it on other headsets, and the application worked very well. 

Except that since a few days, the application freezes every 5 seconds. The image freezes, and the application is no longer fluid.

I have no explanation for this phenomenon as there has been literally NO change in the application.

To tell you the truth, we generated the APK file a long time ago and it has always worked fine, except for the last few days...

Does anyone have the same problem? Has there been a Meta Quest 2 update that would affect this performance?