On the main menu it drops from 120 fps down to between 30-50 just mousing over the different menu options. Similar story in game (although I have only tried the tutorial).
Nothing is hitting 100% utilisation when these fps drops happen and the game will run smoothly at 120 fps until I move the mouse. I've attempted various resolutions and v-sync on or off but nothing helped.
I believe it might be due to the polling rate of the mouse as dropping this from 1000 to 500 did decrease the size of the drops but did not get it to a playable amount.
Has anyone got a fix or experienced this before?
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