fps drops when I move it

Hello!
My Name is Max (aka msxi) and I have a big problem...
My mouse is a Glorious Model o and my pc is a Mac book air from 2013.
a couple days ago I got about 120 Fps all the time, which is what I kinda get now too, but everytime I move my mouse my game freezes (0 fps) till i stop moving my mouse... instantly after that my Game stops freezing and I go back to 120 in a mater of seconds.

Thanks for responding,
Max