So, the title is quite a giveaway here but I suppose I could offer some more details. Examples of these issues are visual tearing and lag. The game still plays fine as far as I can tell, there doesn't seem to be any physical lag or anything like that but the glitches are still rather annoying. And my point is, the optimisation I allowed seems to be the cause of this. I even tried reverting the changes but that hasn't fixed my problem. And I repeat, I did not have these issues before optimisation. Is there anything I can do to fix this?
Have you tried disabling the optimization for Skyrim and then maunally changing the graphics yourself?
Also, are you using any kind of graphical mod (or any mod for that matter) in Skyrim?