I tested the fix on the fly and thought it was good only to return home later and it was still an issue. Can you unflag this post please? Thank you!
http://www.tomshardware.com/answers/id-2425479/mouse-lag-moving-camera-quickly.html#14821968
http://www.tomshardware.com/answers/id-2425479/mouse-lag-moving-camera-quickly.html#14821968