@shir1 Yes this is normal and expected. This is a LIVE REALTIME app. No different from running a super powerful video game or a gpu simulation. If it is running, it will attempt to run the RTX viewport at the maximum quality and maximum framerate possible. It does not matter if there is just an empty scene, or a million objects in it. The demand is always at max. This is not an app to “leave running” in the background casually. It is very intense.
There is one setting you can add which is already on by default in USD Composer but not in Issac Sim. You can add ECO MODE here and this will reduce the GPU load down from 100% to around 20% when it reaches this set number of rendering iterations.
