If it's the same issue as me, you will find the Game is actually running at 60fps, if you move your camera around in the bridge, it's buttery smooth, just all the animations and ship animates at like 5fps.
The only time I've ever seen someone solve this was by disabling VSync and it worked for them, didn't work for me though and others so who knows.
I do know though, before I updated Windows 10 recently, it game ran smooth on the last W10 update, so yeah something in the new OS update is absolutely causing the engine to basically crap itself here.
I think it's unsolvable for now frankly, I've tried everything.