I bring to your attention a serious problem on the handling of NDI signals in input through the NDIIN operator.
After the six sources, all operators become unmanageable with lag and blocks (TD release 2021) despite the server being equipped with a 10GB fiber ethernet card, i7 10700k, 2 x GTX2080TI, 64 GB Ram, 2 x NVME Samsung 980 PRO.
The same server with VMIX and 20 NDI sources presents no problem.
We are trying to bring TouchDesigner back to hybrid digital event management, but you need to make an effort to improve the handling of inputs including NDI and BlackMagic cards (it is really indecent to have to see TD blocked for 3/5 seconds every time an input is activated. of a DeckLink 8k PRO)