Whenever there is a screen transition, I'll just call it static since that's the visual effect that plays, FPS will tank from 60 to 3-5.
Modlist
"lw_console",
"interestingportraitspack",
"lw_lazylib",
"US",
"lw_version_checker",
"audio_plus",
"shaderLib"
There are no crashes or errors in the logs. Running on linux, all drivers up to date.
Edit: Tested with all mods disabled, FPS still drops when doing something like opening a planet menu or going into hyperspace.