Skyrim's physics go haywire if the FPS exceeds 60. The more the worse the effects. On 120Hz monitors you can just set the v-sync to use half of your refresh rate, but on 144Hz that's 72, which already causes issues. Here's a self-discovered tutorial I put together on how to limit the FPS if you have an Nvidia GPU: https://www.reddit.com/r/skyrim/comments/5cs6fx/144hz_fps_fix_how_to_lock_skyrim_ses_fps_to_60/ Sorry for using just a link, but I want it to get noticed through Reddit so that it may spread to reach more people.