Since the slider is responsive, it will automatically adapt to the container dimensions. You MUST prepare your images to exact dimensions if you want it displayed correctly. In your case, this will probably be very hard since you're using a fluid layout. I suggest you continue using the original version of the module, not the latest.
So, now I've installe dthe latest. You suggest delete installed and install the 1.0 version?
I've setup zx slideshow dimension to exactly dimension of images, but first show the image larger ang then the image to default dimension.
This happens in the old version (the one I have in operation), in the new, and with all the different setting zx