Hi,
Please check
[url]https://devtalk.nvidia.com/default/topic/1065973/deepstream-sdk/-is-deepstream4-0-with-rtsp-hardcode-for-h264-/post/5398271/#5398271[/url]
There is hardware engine for video encoding. Since ‘EglSink + File Save’ works fine, it should not be an issue in encoding performance.
Just found
https://stackoverflow.com/questions/17149225/limiting-send-rate-of-gstreamers-udpsink
It worth a try of tuning MTU size. Please configure it to different values and try again.