I totally understand where you’re coming from. I originally had (for 5 years) a Dahua DH-SD52C225U-HNI Mini Auto-Tracking PTZ where this T180 is now, but the auto-tracking was mediocre at best even when I had it fully tweaked and the clarity just wasn’t there.So other than getting a more powerful computer, my suggestions would be to make sure you have a name brand power source, pure copper cable, and watch if you are really losing signal or if it is just BI having an issue thinking it is losing signal when it really isn't.
I am experimenting with the DMSS iPhone app which works great for HUMAN & VEHICLE detection for the T180. Maybe I just remove this cam from BI and use the DMSS app instead cause my wife & 2 adult kids no longer pay attention to the BI alerts because they are too many issues with poor tracking at night.