Started Photoshop trial on my new iMac 5k (4.0 i7, 295 GPU, 24 RAM). RAW files color adjustments in Camera Raw are laggy, stuttering. It's much much much worse than in MBRPO 2012 Retina. CPU is used heavily. The only solution I found is to start all Adobe applications in low res mode. That is ridiculous, please fix it. Makes no sence in keeping iMac 5k neither compels to buy CC membership. When can we expect an update, please.