Major Lag & Stuttering throughout game (Especially bad in Arlanthan)

The only thing that worked for me (saw the suggestion in a Steam forum) after tinkering for 3 days was to undervolt and underclock the CPU in the BIOS. Of course it has to be done carefully, you need to write down the original values and just go down one step (in my case the original voltage was 1.200V and the BIOS let me change it to 1.195V as the next suggested step down, the Clock multiplier was set to 36 and the BIOS let me go down to 35 as the next suggested step down). I intend for this to be temporary as I hope EA releases a patch soon! Or work with Nvidia to release a driver update.