Hey,
I'm having a performance issue on Windows 10, 64 bit, modded KSP (~20 mods), available memory 8 GB.
I have recently "upgraded" from Windows 7 64 bit to Windows 10 64 bit. (Before the update, when I launched the game it used around 4.5 GB memory and it run smooth.)
Now on Windows 10 64 bit it only uses 3.6 GB (~4GB) and I get stutter and long in game loads, very similar as before the Unity 5 / 64 bit upgrade for KSP.
I triple checked that I run KSP 64 bit version, Windows 10 64 bit version and I did not changed anything in my hardware.
Please help!