Mine is very slo on the trigger also. I had it set up in my yard to get pix of a bear (never got him). Son and I were moving a 12 foot boat past the camera, and it barely got the tail end of me going by (missed my son and the 12 foot boat). I was dissapointed.
Also the IR mode stays on too long. mine stays in IR mode for almost 2 hours of light (all pix are whitewashed out) I finally left it in day mode only, because I wanted the early AM pix