Hinweis "Plugin slows down Homebridge" seit Version 1.3.0
**Describe the bug**
Seit Update auf die Version 1.3.0 von Homebridge erhalte ich regelmäßig folgende Meldungen:

[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'On' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Contact Sensor State' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Target Temperature' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Current Relative Humidity' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Current Temperature' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Current Heating Cooling State' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.
[23.2.2021, 15:26:25] [homebridge-homematic] This plugin slows down Homebridge. The read handler for the characteristic 'Target Heating Cooling State' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.

**Which Homematic Device or Service the bug is about**
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**To Reproduce**
Steps to reproduce the behavior:
1. Update Plug-In auf 0.2.226
2. Update Homebridge auf 1.3.0

**Actual behaviour**
System scheint zu funktionieren, lädt den Status der einzelnen Devices aber immer wieder neu bzw. braucht länger um diese in der Home-App anzuzeigen.

**Expected behavior**
Keine Meldung mehr (wenn relevant) + schnelleres Update der Status in der Home-App (soweit dies hiermit zusammenhängt)

**Screenshots**
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**Additional context**
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