Hi everybody I have the same huge fps-drop issue with an i7 4770k and GTX Titan 6GB, when having HDR on and i will try to find a good compromise in the settings. But i dont want to switch HDR to off, because that doesnt make sense to me. Since it seems that Laminar still has to optimize the HDR-engine, can we hope that this HDR-iussue will be "fixed" in the future? At the same time, i was asking myself what the exact reasons were. Is the Saab just using more HDR light-sources? I dont have any idea about it but until yet i only observed that the airports-scenerys had a big impact on the HDR (Aerosoft scenerys). But less the aircrafts itselves... So, is there really no optimizing-potential from your point of view Cameron? If no, so we will have to accept it and wait ;-)