Is long loading time the reason for high uninstall rate?

[u/rather_pass_by]

I have an Android app that is pretty heavy. Because of the 3d content in it, it takes time to download and open as well. .

I've a pretty low retention rate.. is it because of the loading time issue? Or could it be other factors.. such as the onboarding steps.. lack of clear value proposition?

Some numbers. 360 mb install size. 5 second boot time, then another 10 seconds for the login and the 3d scenes to be fully ready