I write fairly deep ML performance tuning articles at https://paulbridger.com and the (many) hours I've spent on each article have been hugely worth it.
Many people reach out to me via this work, and when we talk they already see me as an expert or already want to work with me.
BTW, this is pumping the same video file through the network - not just a single file.
I don't measure latency, but this is not a deep pipeline so it's easy to calculate.