Eufycam 3 disappointing performance

I replaced eufycam 2 with eufycam 3. In daylight, the 4K images are razor-sharp. Night images are just as bad as with eufycam2, both in color and b/w. The detection range is also just as bad. Cameras hang 3m high and with maximum sensitivity only have a detection range of 5 meters. Disappointing.