Thank you for that. Very discouraging though to see it’s not your network at fault but the app initialization.
I have no idea why it’s taking so long, unfortunately all of the data recorded in the call tree / flame graph does not appear to relate to the app itself. Is it possible you’ve recorded the performance of the debugger itself?
In particular the parent process in the first recording is almost empty while it’s saying ‘Loading 3D models 100%’, I would expect to find lots of calls relating to shader compilation.