It's good for me from the main release.

I wonder if there is anything that is blocking the thread.

I've noticed that on the debug build, as building from source, scrolling and navigating is noticably slower.

I'm not sure if that is common for Kotlin and Java builds. I know for other languages, the debug build can often be slower as they don't have the build optimizations. I haven't yet dug into it more yet.