Stuttering still over 3 years! Any help?

[AstroCat]

Some more flying and testing...

When I come out of time acceleration or time skip it seems to stutter a little bit as well. Perhaps it is reloading some textures or something? It smooths out again quickly but for a second or two sometimes it stutters.

The radio chatter only stutters when it first begins but seems to smooth out over time.

This is one of the most finicky games I've ever encountered!