Reolink 36 NVR networking question

[user_749013627990153_749013627990153]

Hello, New to Reolink cameras however I've been using Blue Iris for some time with other brand cameras. I decided to switch to a Reolink DVR due to my Blue Iris servers being overwhelmed by the Reolink 4k cameras. I'm guessing 4k and the h.265 encoding just overwhelmed my hardware. decided it was time to make things more simple. I ordered the 36 camera DVR, and i got it up fairly quickly with all the new Reolink cameras. i currently use a dedicated camera VLAN in my networking configuration. The back of the DVR has 4 unlabeled ethernet ports and one with lan. my questions

1. how can I leverage all 4 ports? is it LACP?
2. am i required to use the DHCP for those ports?
3. can the LAN be on a separate network without utilizing DHCP on the Camera networking?
4. side question - looks like connecting to the NVR does not delivery all the features that connecting directly to the cameras gives, will that be a feature firmware or will i need to connect directly to the cameras individually? for example, time laps on the DVR would be cool.