Zwave Lantency

Hello all,

since a few of day I have latency on my Zwave network with HA.
I try to find why beacause nothing change in my installation and home.
I reboot, clean DB, and moving place controller but it’s the same.

I try now a heal the network.
I see a Test th networks also, but where I can find the “logs” about this test ?

EDIT : I try action in the panel Developer Tools and the are no latency.
I think it’s not the Z-wave now but the webinterface.