Not sure what you mean? As noted above, I wasn’t having a particular performance problem with OH ZWave. However, I was using my unmerged 700 controller PR, so it was a 700 to 700 comparison. I did get improved routing with the 700 controller. Most nodes are in direct communication with the controller at 100KB. I like the network tab on zwave-js-ui as it shows actual routings, not just neighbors.
I found Snap to be problematic on Debian Rpi OS in finding the controller, so settled on Docker instead.