Fan levels not mapping correctly on Roborock S5 max
Hi all,

It seems that my installation does not map the correct fan levels <-> vaccum speeds.
I have a Roborock S5 max that I've correctly setup with Homebridge (token extracted with iOS backup).

I have successfully installed the plugin, and configured it. It appears in my Home app as a fan, but it seems that the different fan levels do not map correctly :

Levels from 0 to 83 seem to be mapped to weird stuff, there is no consistency (hearing from the device suction noise). 
Level 67% seems to be louder than level 83% for example.
The 100% level seems to enable the water drops, strangely.

Is it a known issue, or have I done something wrong?
I'm running v1.2.5, plugin v0.16.1.
Many thanks !