Enhance/optimize performance for low specs android devices

[MTayyabSarfraz]

Hi @pedroSG94 earlier I was able to stream a high-quality stream over FB as per your direction by setting optimal resolutions, thanks for that valuable and prompt feedback.
Currently i'm using 4 different devices for testing.

1. Realme 7 pro with screen resolution of 1080 x 2400 pixels, 20:9 ratio (~411 ppi density),Qualcomm SM7125 Snapdragon 720G
   Octa-core , GPU : Adreno 618
2. poco x3 with screen resolution of 1080 x 2400 pixels, 20:9 ratio (~395 ppi density), Qualcomm SM7150-AC Snapdragon 732G Octa-core processor while the GPU : is Adreno 618.
3. Nokia 3.4 with screen resolution of 720 x 1560 pixels, 19.5:9 ratio (~269 ppi density), Qualcomm SM4250 Snapdragon 460, Octa-core , GPU :Adreno 610
4. Samsung Galaxy Tab A 8.0 , 768 x 1024 pixels, 4:3 ratio (~160 ppi density) , Quad-core 1.2 GHz.

for ReamlMe 7 and POCO you would have noticed that both devices have almost the same specs(Nokia 3.4 with much lesser specs is very smooth just like RealME), yet while streaming with custom overlays(RTMPs - applying android view filter) Realme 7 performs well...while Poco x3 devices hang/lags...i mean the UI and the camera feed UI stucks while moving the camera around/or there is some animation being played on my webview which I am passing as a view to AndroidViewRenderer.
The same goes for the other 2 devices, On a performance scale if I order these devices from Good to worse here is the order.

RealMe > Nokia 3.4 > Samsung Galaxy Tab > Poco x3

I would like to know what are the factors that affect the performance based on the above observation.

AND would love to know how I can manage to avoid/minimize this lag,as I believe there is always a way to do so as there are many apps out there with same functionality supporting much lesser specs devices.
!
i am using cameraBase2 API
the stream resolution I'm sending while preparing video is :

return prepareVideo(1920, 1080, 60, 1500 * 1024, rotation);

and for camera preview size I'm setting it as following:

 @Override
    public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int width, int height) {
//        rtmpCamera1.startPreview(1920, 1080);
        rtmpCamera1.startPreview(width, height);
    }

Thanks in advance! :)

here are some logs desc that might be useful..coming from a lagging device...it shows too much work is being done on the main thread..

D/Surface: lockCanvas
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 2 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 3 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 6 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 4 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
D/Surface: lockCanvas
D/Surface: lockCanvas
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 6 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
D/Surface: lockCanvas
D/Surface: lockCanvas
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 1 line
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/chatty: uid=10011(com.pedro.rtpstreamer) RenderThread identical 2 lines
E/GPUAUX: [AUX]GuiExtAuxCheckAuxPath:593: Null anb
I/RtmpSender: Audio frame discarded
I/RtmpSender: Audio frame discarded
I/Choreographer: Skipped 34 frames!  The application may be doing too much work on its main thread.
I/RtmpSender: Audio frame discarded
I/RtmpSender: Audio frame discarded
D/View: [ANR Warning]onDraw time too long, this =android.webkit.WebView{760194a VFEDHVC.. ........ 0,0-2264,876 #7f0801ea app:id/web_view}time =584 ms

D/View: [ANR Warning]onDraw time too long, this =android.webkit.WebView{760194a VFEDHVC.. ........ 0,0-2264,876 #7f0801ea app:id/web_view}time =642 ms
I/Choreographer: Skipped 38 frames!  The application may be doing too much work on its main thread.