The box and mixer plugins are Gstreamer original plugins, they are not hardware accelerated. So they are slow. nvmultitiler is Nvidia developed plugin which is hardware accelerated.
Yes. You can use box and mixer to display as you like. But they are Gstreamer plugins, we will not accelerate them. If there is nothing to be done, can you close this topic? Is there anything related with DeepStream to be discussed here?