So for church we are using 2 computers. 1 is a basic Mini PC that is running the powerpoint out to the projectors. 2 is the main streaming pc its running obs and is has the camera and sound coming into it and sending to youtube. We went to the 2 pc setup because I was tired of having the PowerPoint on the same computer as the stream as we needed one person controlling the stream/obs and one person controlling the PowerPoint. I looked around and found NDI. I installed it on both computers and connected no issue other than a lag of about 15 sec from when the powerpoint actually changed to when it showed on the obs computer/ stream. How do i get rid of the delay.. I was going to isolate both PC to there own switch but not sure if that is the correct thing. Right now there going to a wireless router.