Android Question CPU over 98%

[Dey]

Hi everyone,
I have a B4XPage app that stays active all day
installed on various PCs with the LDPLayer emulator.
On some of them, I've noticed severe slowdowns. I exit the app and restart it, and it resolves the issue.
At this point, I created a timer that queries the RAM and CPU status every 5 seconds.

After several minutes, on some PCs, I see the CPU go above 98%
the RAM is stable.
Example:
Just started:
[MONITOR] RAM Used: 11MB | CPU Activity: 26.82%
[MONITOR] RAM Used: 12MB | CPU Activity: 14.85%
[MONITOR] RAM Used: 9MB | CPU Activity: 20.82%
After hours:
[MONITOR] RAM Used: 17MB | CPU Activity: 52.59%
[MONITOR] RAM Used: 14MB | CPU Activity: 82.41%
[MONITOR] RAM Used: 22MB | CPU Activity: 98.9%
[MONITOR] RAM Used: 39MB | CPU Activity: 98.12%
[MONITOR] RAM Used: 30MB | CPU Activity: 98.62%
[MONITOR] RAM Used: 12MB | CPU Activity: 85.57%
[MONITOR] RAM Used: 15MB | CPU Activity: 90.01%
[MONITOR] RAM Used: 18MB | CPU Activity: 98.44%
[MONITOR] RAM Used: 17MB | CPU Activity: 99.05%

Sub to read RAM and CPU

Private Sub cpuTimer_Tick
    Dim joRuntime As JavaObject
    joRuntime = joRuntime.InitializeStatic("java.lang.Runtime").RunMethod("getRuntime", Null)
    Dim totalMemory As Long = joRuntime.RunMethod("totalMemory", Null)
    Dim freeMemory As Long = joRuntime.RunMethod("freeMemory", Null)
    Dim usedMemory As Int = (totalMemory - freeMemory) / 1024 / 1024
   '  Correct CPU Monitoring
    Dim joDebug As JavaObject
    Dim joSystemClock As JavaObject
    
' Actual CPU time used by the process's threads (in nanoseconds)
    Dim currentCpuTime As Long = joDebug.InitializeStatic("android.os.Process").RunMethod("getElapsedCpuTime", Null) * 1000000

' Real time elapsed (system clock)
    Dim currentTime As Long = joSystemClock.InitializeStatic("android.os.SystemClock").RunMethod("elapsedRealtimeNanos", Null)
    Dim deltaPerc As Double = 0
    If lastSampleTime > 0 Then
        Dim cpuDiff As Long = currentCpuTime - lastCpuTime
        Dim timeDiff As Long = currentTime - lastSampleTime
                
        ' Real percentage calculation: (CPU_Time_Used / Total_Time_Elapsed) * 100
        If timeDiff > 0 Then
            deltaPerc = (cpuDiff / timeDiff) * 100
        End If
    End If
    lastSampleTime = currentTime
    lastCpuTime = currentCpuTime
    ' Output
Log($"[MONITOR] RAM Used: ${usedMemory}MB | CPU Activity: ${NumberFormat(deltaPerc, 1, 2)}%"$)
Utility.SaveLog($"Starter.cpuTimer_Tick
[MONITOR] RAM Used: ${usedMemory}MB | CPU Activity: ${NumberFormat(deltaPerc, 1, 2)}%"$)

End Sub

I don't encounter this problem with PC debugging and emulation.

SQLite database only on PC with B4J App and RDC Connector

Any suggestions on how to debug?
Thanks