Fist of all, I'm not affiliated with Laminar Research.
My intention while sending this link was to show you that LR had already given plenty of communication about this kind of questions, and it's obvious they will not take it into account. So you really have 2 options, for your time not to be wasted :
- either you don't want to suffer all the inconvenience beta versions can bring and you can still revert to a stable version by unticking the beta box during the update process (just hoping you don't have Steam version).
-or you should give more details and at least include your log.txt, perform a calibrated fps test via command lines (this was also the purpose of the link). Make sure you have a clean default install, with everything up to date, otherwise Laminar Research will not take it into account. If the problem comes from a third party addon, you should contact the addon developer instead.
Your bug report will be more efficiently followed if filed here :
PS : I didn't notice the FPS drop you are mentioning.
Another useful link for troubleshooting: