I run BI on my laptop ok. I have an 16 camera qsee analog system with around 8 cams installed, an 8 camera qsee/dahua IP system, with 8 cams, 2 also recording on my synology, all IP cams can record in BI if i have it running. My original qsee IP DVR died, so bought a dahua to replace. Software limited to 8 cameras. Just tried an amcrest camera with hardware zoom, plus digital zoom. All my IP cameras, qsee dahua and amcrest have the exact same software, except newer cams have newer features.
I have a raspberry pi running a streaming server from my older zytel nas. The new synology puts it to shame.