Unfortunately the CGO3 and 3+ don't do very well in low light, but if you put the camera in full manual mode, and control the ISO yourself it can do much better than auto. You can increase the ISO to let more light into the sensor, but of course that introduces noise, which kills detail, and gets made worse by any levels correction or grading you do. The Typhoon H has a Night Mode option in its settings, which can give better results I'm told, but I haven't tried it myself so far. Do you have that mode on the Q500 ?
Otherwise, apart from the manual settings tip, I'm afraid the best advice I can give you is 'go out earlier in the day' ! :/