just set a max fps limit in your nvidia control panel ( if you own nvidia ) as we mentioned some times. These max setting, which should match with your monitor fps, is allways a good idea. Most, if not for all games, is the loading screen not limited in any way.
The LPM works seemingly good for what we got for now.
And also not forget, that parts of LPM plays with the vsync steps and you have seemingly no vsync enabled.