For anyone interested in improving their performance in R3E and DTME, the biggest performance offenders is Reflection Type, changing this one to cube map gives a big fps boost from the reduced setting. This one does affect image quality however, if you need more performance, it may be something you just have to live with. The remaining two setting are not as bad but certainly can be tweaked for better performance. Change Shadow Split to no and Motion Blur Type to fast. Between these settings, its possible to double your frame rate.