We have identified an issue with the Nova chassis that may be causing the match-wide FPS issues seen after the release of the October 9th patch.
It looks like an animation bug was introduced into the Nova chassis as a result of the release of the NVA-D [L] variant.
UPDATE 10/13/2015.
Unfortunately, we will not be able to issue a hot-fix to resolve this problem. However, a fix is currently on-track for the October 20th patch. I will keep everyone updated on the status of the fix leading up to patch day.