Xavier Nx latency Capture vs Tx2 and Nano

Please execute sudo nvpmodel -m 0 and sudo jetson_clocks to enable maximum performance mode. And enable VIC at maxmium clock:
Nvvideoconvert issue, nvvideoconvert in DS4 is better than Ds5? - #3 by DaneLLL

The steps run the system at maximum performance. Please try and see if it helps.