Zwave Jams

Wondering if it's normal to see multiple jams per day coming from my Z-Wave controller (Zooz 800 LR)? My network is 21 devices (17 mains, 4 battery) and works fine most of the time, however, occasionally there can be a huge lag in the amount of time it takes to complete an action as the controller jams and recovers.

Looking at the logs, there don't appear to be any noisy devices or devices that continuously throw errors. Looking for ideas on what else I can do to improve performance.