All budget cameras (including HIK or dahua like cameras) have very poor software in handling the bright IR emitted from the cameras both in terms of intensity and also in terms of coverage. The best solution is to add additional and external lights to the camera. The external lights must be diffused and not spot like lights. The human eye has a very wide dynamic area in perceiving the high contrast spot lights. Even the so called wide dynamic range (120-140db) cameras are easily confused by bright spot light and "burn" anything in a distance of around 2-3 meters. I have found that the best external lighting comes from the diffused panels used in the offices ceilings of the size at least 120cmx30cm with around 4000Lm intensity (around 45 Watts consumption). They produce a very diffused lighting over a very wide area that does not blind the camera. The problem is that they can not be fitted in many cases outdoors.Regarding motion, I don't disagree. However, I haven't seen much in the way of IR based cameras that are providing significantly better picture, most seem to show blown out faces due to the IR, for cars you won't get the license plates at night, etc. Curious what camera you guys are recommending right now that doesn't need additional spot lights to have good capture of video/motion at night?
With regards to license plates, you need special LPR cameras with 120 frames per second refresh rate and high contrast capable sensors. It is no wander why the LPR software functionality is only included in such camera and in no other model.