I have a dahua hdw5231R-ZE camera set up using BI. My images at night seem to have an awful lot of motion blur and seem unclear in general. I would appreciate any input on the matter and have attached a short clip. most of my settings are at the default other than the following. in the Dahua web GUI I lowered 3D NR down to 31, frame rate is at 15 and Iframe is also at 15.