Which driver are you using, the built-in one, or the community one? The community one might work better for you. [RELEASE] GE/Jasco Z-Wave Plus Motion Dimmer Driver
I think this is also available in Hubitat Package Manager if you have that installed. If you don't, you should check it out. [BETA] Hubitat Package Manager
Also, I believe there are parameters that can be set to control some of this behavior. Did you check these parameters? You can use the Basic Zwave tool to check and adjust these parameters. I think the community based driver exposes most of these without using the tool though.
Super basic Z-Wave parameter tool
