A perfect image is determined by lighting, aperture and shutter-speed. A 4 millisecond shutter speed is worthless if all you get is an undeveloped image.
I have been using a Nikon digital camera to photograph foxes, but the shutter speed is not fast enough and I get blurry pictures if the foxes are moving. I just have to hope that at the moment I press the shutter they are stationary. I feel like going back to using my pentax film camera with a 400 asa film which would freeze the foxes if I use a fast shutter speed. But its not nearly as convenient as using digital, because I can load the pictures straight onto my computer,
Can you not increase the ISO setting on the camera? That will give you and increased shutter speed.
The manual is long and complicated. I have not read it all. But it does say it always uses flash in low light setting, and I cannot use flash to photo foxes through a window because it would glare on the glass, and scare the foxes away too. Since the foxes usually come out at dusk and go to ground at dawn this leaves precious little time to get them in enough light.
Edit, I have just read the manual about ISO settings, and I have been using the camera on auto setting. It ranges from 80 to 1600, and can be manually set at a higher speed so I will try that.