flickr problem with Mac Pro

[carvan]

dear,

setup:
3 BM minirecorder SDI with attached Panasonic AW-HE40SKE PTZ camera
Mac pro (september 2017)
4 outputs: 1 retro projector, 1 front projector, 1 monitor, 1 controllmonitor

For our last show we had serious flickr on the camera layers and Not on the layers with internal content.
The weird thing is that on my MacBook Pro (may2017) this is not happening. So I am searching to solve this problem.
I think the GC in the Mac Pro doesn't fit the job

1. Is resolume CPU based or GPU based software? If it is GPU based software, can I use then an external graphic card and which would work best with resolume AMD or NVIDIA?

2. Can arena handle a BM decklink du card and how is it recognizing the 2 incoming signals

3. How can I how with outputs directly to SDI

tHANKS A LOT FOR YOUR ATTENTION EN SUGGESTIONS ACCORDING THIS SETUP

[YoungDumbBroke]

Video cards for a Mac can be tricky, you might want to take a look at http://www.macvidcards.com/i-want-the-b ... start.html for a little bit of insight.