I know in the Known Issues there's this defeating little line:
But this micro-stuttering start just after I upgraded to the latest stable build. Zero mods, I re-validated the files through Steam, I prioritized the KSP process, nothing seemed to fix the new stuttering. I even tried those Unity garbage monitor mods, and I'm not getting 'red spikes' like they suggest you would if this was your issue, suggesting to me it's something else. Nothing works.
Except switching to windowed mode. Without even dropping the resolution or changing any other settings, there is zero stutter in windowed mode, but it's unbearable in fullscreen.
Given circumstances, is there any plausible issue that could be concluded? AMD Phenom, Windows 10, I'm aware of the Phenom crash issue, and while it's never been a problem for me, I'm still using that '-force-gfx-st' launch option, and have checked for the stutter with and without it.
I'm at a loss at this point.