Issues surrounding VSync i think

[takithess]

So, i have an issue regarding of the usage of VSync in Skyrim SE and here's the issue simplified:

 

When " iVsyncPresentInterval" is at 0, the game runs much smoother, but seems to run into some odd glitches that basicly make the game unplayable, the beginning cart ride to Helgen is just spinning out of control, i passed this by just setting it to 1, went through the cart ride and did my character, reset the game and switched it back to 0 again, everything seemed normal, until i went to the caves, where you encounter the first frostbite spiders, they were just stuttering up and down and had trouble moving, and 2 of them were just stuck in mid air not being able to come down to even fight.

 

When " iVsyncPresentInterva " is at 1, the game works properly, but i have some serious mouse lag, and its kinda really not playable, turning it off seems to be the only thing that get rid of the mouse lag, but then i get the weird glitches/bugs

 

So, im really wanting to play the game again after a long time, but i cannot really until i can somehow resolve the issue.

 

I'm not using any other mods than " unofficial skyrim special edition patch " which is supposed to fix glitches etc. and i had this issue even before i installed it

 

If you have any suggestions that could solve this, would be highly appreciated!

[takithess]

And also, bMouseAcceleration is at 0

[Grospolina]

The Havok physics engine is dependent on a framerate of 60 fps. If the framerate goes over that, then the engine explodes because it updates faster than it should. Turning on VSync caps your framerate, which is why it fixes the issue. If you want to turn it off, then you can try (SKSE64) Havok Fix. It dynamically changes your fMaxTime (Havok update time) to correspond to the current framerate.