20 screens at one time!
I got a new Intel 10th Gen I9-10900K @ 3.7GHz system with 64GB of RAM and two RTX 2080 Super cards that are configured in SLI mode. I'm happy to report that I'm able to play 20 RTSP streams at once in both 3D and VR modes with room to grow. No jitter in VR at all.
On my Intel I7-7700K @ 4.2GHz system with 32 GB RAM and single GTX 1080, the GPU gets pegged at 100% doing video decoding for 20 RTSP streams. I have to drop it down to 16-18 screens, with 18 screens being near the limit.
Just thought I would share some good news for a change. I'm very happy that this is working well.