Trackmix optimal install height?

Trying to optimize and tweak this camera in an indoor arena... I have the camera centrally located so that it is able to pick up movement throughout the arena. However, my issue now is that it almost always loses track of the object when it passes directly under it. The camera is not mounted terribly high, maybe about 10 ft. This is on purpose because I want to maintain as much of a side view of subjects as possible. As I watch the camera track even a small object like a person will stay in view, but as soon as it gets into the corner of the field of view, the camera seems to ignore and stop tracking. The subject is never entirely out of the field of view, but the camera revert back to its home location without continuing to track. I have tried playing with the different tracking options as far as digital first tracking it first etc which doesn't seem to help. Physically, The camera turret should be able to easily continue tracking an object even directly beneath it. I can raise the camera up another couple feet, although I will the start to lose the optimal viewing angle. Just wondering if anyone has any suggestions for wiki settings etc?