need a means where we can specify the batch size for transmit

it is currently hardcoded to 32 but that’s too large for some very low latency apps and would be nice if this was tunable. I can create a PR if needed

The issue does not name a file, test, or entry point; start by locating the hardcoded batch size of 32 in the transmit path and tracing how transmission configuration is exposed. Done means the batch size can be tuned for low-latency applications without changing the default behavior, with the existing project checks passing.

Written by the indexing model from the issue text.