Interesting to read about the static objects challenges, not having any issues with cars on the driveway but they are close to the camera and maybe this makes a difference. Generally the DeepStack is working well especially now I trained a custom model for night schedule. Looking at the computer spec of
@ingeborgdot then I would think you could crank the settings fairly high on DeepStack, assuming the GTX 1660 is doing the work, increase the '+ real-time images' and reduce the 'analyze time' to 250ms or 500ms. I've done the same on my critical cameras and it manages but the CPU is struggling, got a GTX 1660 on order and hope that will take the strain.
Increasing the camera frame rate I am sure has also helped with my general DeepStack accuracy, this may be due to my CPU which is only an i5-4690 but the system has 16GB RAM so shouldn't be too sluggish.