Is there a way to tell painlessMesh to leave the serial port strictly alone?

[Scott]

The documentation says it's going to send error messages to the serial port. My application takes over the TX pin for other purposes; use of Serial is forbidden. Is this a way to disable this aspect of painlessMesh?

If not, is there something equivalent out there? I just need a few nodes in a mesh to talk to each other, very small messages with very low latency.